Allah's Apostle said, "If any one of you says, "Amin" and the angels in the heavens say "Amin" and the former coincides with the latter, all his past sins will be forgiven."

Allah's Apostle said, "(The performance of) `Umra is an expiation for the sins committed (between it and the previous one). And the reward of Hajj Mabrur (the one accepted by Allah) is nothing except Paradise."

Ali ibn Rabi'ah said: I was present with Ali while a beast was brought to him to ride. When he put his foot in the stirrup, he said: "In the name of Allah." Then when he sat on its back, he said: "Praise be to Allah." He then said: "Glory be to Him Who has made this subservient to us, for we had not the strength, and to our Lord do we return." He then said: "Praise be to Allah (thrice); Allah is Most Great (thrice): glory be to Thee, I have wronged myself, so forgive me, for only Thou forgivest sins." He then laughed. He was asked: At what did you laugh? He replied: I saw the Messenger of Allah (saws) do as I have done, and laugh after that. I asked: Messenger of Allah , at what are you laughing? He replied: Your Lord, Most High, is pleased with His servant when he says: "Forgive me my sins." He know that no one forgives sins except Him.

(the wife of the Prophet) Allah's Apostle said, "No calamity befalls a Muslim but that Allah expiates some of his sins because of it, even though it were the prick he receives from a thorn."

Allah's Apostle said, "Whoever observes fasts during the month of Ramadan out of sincere faith, and hoping to attain Allah's rewards, then all his past sins will be forgiven."

Allah's Apostle said, "If the Imam leads the prayer correctly then he and you will receive the rewards but if he makes a mistake (in the prayer) then you will receive the reward for the prayer and the sin will be his."

The Prophet (saws) said: When a man makes a promise to his brother with the intention of fulfilling it and does not do so, and does not come at the appointed time, he is guilty of no sin.

Allah's Apostle said, "Whoever says, 'Subhan Allah wa bihamdihi,' one hundred times a day, will be forgiven all his sins even if they were as much as the foam of the sea.

Allah's Apostle said, "Whoever establishes the prayers on the night of Qadr out of sincere faith and hoping to attain Allah's rewards (not to show off) then all his past sins will be forgiven."

The Prophet said, "The most sinful person among the Muslims is the one who asked about something which had not been prohibited, but was prohibited because of his asking."

The Prophet said, "Some people will be scorched by Hell (Fire) as a punishment for sins they have committed, and then Allah will admit them into Paradise by the grant of His Mercy. These people will be called, 'Al-Jahannamiyyin' (the people of Hell).

Ya`la bin Muslim and `Amr bin Dinar and some others narrated the narration of Sa`id bin Jubair. Narrated Sa`id: While we were at the house of Ibn `Abbas, Ibn `Abbas said, "Ask me (any question)" I said, "O Abu `Abbas! May Allah let me be sacrificed for you ! There is a man at Kufa who is a storyteller called Nauf; who claims that he (Al-Khadir's companion) is not Moses of Bani Israel." As for `Amr, he said to me, "Ibn `Abbas said, "(Nauf) the enemy of Allah told a lie." But Ya`la said to me, "Ibn `Abbas said, Ubai bin Ka`b said, Allah's Apostle said, 'Once Moses, Allah's Apostle, preached to the people till their eyes shed tears and their hearts became tender, whereupon he finished his sermon. Then a man came to Moses and asked, 'O Allah's Apostle! Is there anyone on the earth who is more learned than you?' Moses replied, 'No.' So Allah admonished him (Moses), for he did not ascribe all knowledge to Allah. It was said, (on behalf of Allah), 'Yes, (there is a slave of ours who knows more than you ).' Moses said, 'O my Lord! Where is he?' Allah said, 'At the junction of the two seas.' Moses said, 'O my Lord ! Tell I me of a sign whereby I will recognize the place.' " `Amr said to me, Allah said, "That place will be where the fish will leave you." Ya`la said to me, "Allah said (to Moses), 'Take a dead fish (and your goal will be) the place where it will become alive.' " So Moses took a fish and put it in a basket and said to his boy-servant "I don't want to trouble you, except that you should inform me as soon as this fish leaves you." He said (to Moses)." You have not demanded too much." And that is as mentioned by Allah: 'And (remember) when Moses said to his attendant .... ' (18.60) Yusha` bin Noon. (Sa`id did not state that). The Prophet said, "While the attendant was in the shade of the rock at a wet place, the fish slipped out (alive) while Moses was sleeping. His attend an said (to himself), "I will not wake him, but when he woke up, he forgot to tell him The fish slipped out and entered the sea. Allah stopped the flow of the sea. where the fish was, so that its trace looked as if it was made on a rock. `Amr forming a hole with his two thumbs an index fingers, said to me, "Like this, as in its trace was made on a rock." Moses said "We have suffered much fatigue on this journey of ours." (This was not narrated by Sa`id). Then they returned back and found Al-Khadir. `Uthman bin Abi Sulaiman said to me, (they found him) on a green carpet in the middle of the sea. Al-Khadir was covered with his garment with one end under his feet and the other end under his head. When Moses greeted, he uncovered his face and said astonishingly, 'Is there such a greeting in my land? Who are you?' Moses said, 'I am Moses.' Al- Khadir said, 'Are you the Moses of Bani Israel?' Moses said, 'Yes.' Al-Khadir said, "What do you want?' Moses said, ' I came to you so that you may teach me of the truth which you were taught.' Al- Khadir said, 'Is it not sufficient for you that the Torah is in your hands and the Divine Inspiration comes to you, O Moses? Verily, I have a knowledge that you ought not learn, and you have a knowledge which I ought not learn.' At that time a bird took with its beak (some water) from the sea: Al-Khadir then said, 'By Allah, my knowledge and your knowledge besides Allah's Knowledge is like what this bird has taken with its beak from the sea.' Until, when they went on board the boat (18.71). They found a small boat which used to carry the people from this sea-side to the other sea-side. The crew recognized Al-Khadir and said, 'The pious slave of Allah.' (We said to Sa`id "Was that Khadir?" He said, "Yes.") The boat men said, 'We will not get him on board with fare.' Al-Khadir scuttled the boat and then plugged the hole with a piece of wood. Moses said, 'Have you scuttled it in order to drown these people surely, you have done a dreadful thing. (18.71) (Mujahid said. "Moses said so protestingly.") Al-Khadir said, didn't I say that you can have no patience with me?' (18.72) The first inquiry of Moses was done because of forgetfulness, the second caused him to be bound with a stipulation, and the third was done intentionally. Moses said, 'Call me not to account for what I forgot and be not hard upon me for my affair (with you).' (18.73) (Then) they found a boy and Al-Khadir killed him. Ya`la- said: Sa`id said 'They found boys playing and Al-Khadir got hold of a handsome infidel boy laid him down and then slew him with knife. Moses said, 'Have you killed a innocent soul who has killed nobody' (18.74) Then they proceeded and found a wall which was on the point of falling down, and Al-Khadir set it up straight. Sa`id moved his hand thus and said 'Al-Khadir raised his hand and the wall became straight. Ya`la said, 'I think Sa`id said, 'Al-Khadir touched the wall with his hand and it became straight (Moses said to Al-Khadir), 'If you had wished, you could have taken wages for it.' Sa`id said, 'Wages that we might had eaten.' And there was a king in furor (ahead) of them" (18.79) And there was in front of them. Ibn `Abbas recited: 'In front of them (was) a king.' It is said on the authority of somebody other than Sa`id that the king was Hudad bin Budad. They say that the boy was called Haisur. 'A king who seized every ship by force. (18.79) So I wished that if that boat passed by him, he would leave it because of its defect and when they have passed they would repair it and get benefit from it. Some people said that they closed that hole with a bottle, and some said with tar. 'His parents were believers, and he (the boy) was a non-believer and we (Khadir) feared lest he would oppress them by obstinate rebellion and disbelief.' (18.80) (i.e. that their love for him would urge them to follow him in his religion, 'so we (Khadir) desired that their Lord should change him for them for one better in righteousness and near to mercy' (18:81). This was in reply to Moses' saying: Have you killed an innocent soul.'? (18.74). 'Near to mercy" means they will be more merciful to him than they were to the former whom Khadir had killed. Other than Sa`id, said that they were compensated with a girl. Dawud bin Abi `Asim said on the authority of more than one that this next child was a girl.

Allah's Apostle said, "Shall I inform you of the biggest of the great sins?" They said, "Yes, O Allah's Apostle!" He said, "To join partners in worship with Allah, and to be undutiful to one's parents. "

Allah's Apostle said: "Whoever establishes prayers during the nights of Ramadan faithfully out of sincere faith and hoping to attain Allah's rewards (not for showing off), all his past sins will be forgiven."

as above (the sub narrators are different). Abu Huraira qualified the three children referred to in the above mentioned Hadith as not having reached the age of committing sins (i.e. age of puberty) .

I heard Allah's Apostle saying regarding Ramadan, "Whoever prayed at night in it (the month of Ramadan) out of sincere Faith and hoping for a reward from Allah, then all his previous sins will be forgiven."