That the Messenger of Allah (saws) said: "Both the buyer and the seller retain the option as long as they have not separated. If they spoke the truth and clarified (any defects or conditions), then they would be blessed in their sale, and if they hid something and lied then their sale would be deprived of blessings."

And this is a Sahih Hadith.

This is how it was reported from Abu Barzah Al-Aslami, that two men came disputing to him after the sale of a horse, and they were on a ship, so he said: "I did not see the two of your separate, and the Messenger of Allah (saws) said: 'The buyer and the seller retain the choice as long as they did not separate.'"

Some of the people of knowledge, among the people of Al-Kufah and others, held the view that the separation refers to speech. This is the saying of [Sufyan] Ath-Thawri. This has been reported from Malik bin Anas, and it has been reported from Ibn al-Mubarak that he said: "How could this be refuted ?" And the Hadith about it from the Prophet (saws) is Sahih, and it strenghtens this view.

And the meaning of the saying of the Prophet (saws): "Except for the optional sale" is, that (while they are still together) the seller gives the buyer the option to cancel after the conclusion of the sale. If he chooses to agree to the sale, then he does not have the choice to cancel the sale after then, even if they did not separate. This is how Ash-Shafi'i and others explained it. And what strenghtens the view of those who said that the separation refers to them parting, (and) it does not refer to speech, is the (following) Hadith of 'Abdullah bin 'Amr from the Prophet (saws).

from his father: "The Messenger of Allah (SAW) gave a Khutbah one day and said: 'Indeed there is a man whose Lord has given him the choice between living in this life as long as he wishes to live, and eating from this life as much as he wishes to eat, and between meeting his Lord.'" He said: "So Abu Bakr cried. The Companions of the Prophet (SAW) said: 'Are you not amazed at this old man, when the Messenger of Allah (SAW) mentioned a righteous man whose Lord gave him the choice between this life or meeting his Lord, and he chose meeting his Lord.'" He said: "But Abu Bakr was the most knowledgeable one of them regarding what the Messenger of Allah (SAW) had said. So Abu Bakr said: 'Rather we will ransom our fathers and wealth for you.' So the Messenger of Allah (SAW) said: 'There is no one among people more beneficial to us (Amanna Ilaina) in his companionship, or generous with his wealth than Ibn Abi Quhafah. And, if I were to take a Khalil, I would have taken Ibn Abi Quhafah as a Khalil. But rather love and the brotherhood of faith' - saying that two or three times - 'Indeed your companion is the Khalil of Allah.'"

Hudhaifa and Abu Huraira reported God's messenger as saying, "God who is blessed and exalted will collect mankind and the believers will stand till paradise is brought near them. They will then go to Adam and say, `Ask, father, that paradise may be opened for us,' but he will reply, `Has anything but your father's sin put you out of paradise? I am not the one to do that; go to my son Abraham, God's friend.' Then Abraham will say, `I am not the one to do that, for I was only a friend long, long ago; but apply to Moses to whom God spoke.' They will then go to Moses, but he will say, `I am not the one to do ta t; go to Jesus, God's word and spirit.' Jesus will say, `I am not the one to do that, so they will go to Muhammad and he will stand and be given permission. Faithfulness and ties of relationship will be sent and will stand on the sides of the Path, right and left, and the first of you will pass like lightning (Abu Huraira telling that he interpolated, " You for whom I would give my father and mother as ransom, what is there like the movement of lightning?" and received the reply, "Have you not seen how the lightning goes and returns like the twinkling of an eye?"), next like the passing of the wind, next like the passing of a bird and the running of men whose deeds cause them to run, your prophet standing on the Path and saying, 0 my Lord, keep safe, keep safe,' till men's deeds are so weak that a man comes able only to creep. On both sides of the Path pronged flesh-hooks placed under command will be hung and will seize those about whom they receive command, some being lacerated and escaping and others being thrown Pell Mell into hell. By Him in whose hand Abu Huraira's soul is[*], the pit of Jahannam is a seventy years' journey down." *There is some doubt as to whether the end of the tradition gives the Prophet's or Abu Huraira's word, this oath suggesting the latter. In the text "on both sides of the Path" is preceded by "he said." One wonders. Therefore, whether from there to the end Abu Huraira is making an addition to his own. Muslim transmitted it.

Meat was one day brought to the Messenger of Allah (may peace be upon him) and a foreleg was offered to him, a part which he liked. He sliced with his teeth a piece out of it and said: I shall be the leader of mankind on the Day of Resurrection. Do you know why? Allah would gather in one plain the earlier and the later (of the human race) on the Day of Resurrection. Then the voice of the proclaimer would be heard by all of them and the eyesight would penetrate through all of them and the sun would come near. People would then experience a degree of anguish, anxiety and agony which they shall not be able to bear and they shall not be able to stand. Some people would say to the others: Don you see in which trouble you are? Don't you see what (misfortune) has overtaken you? Why don't you find one who should intercede for you with your Lord? Some would say to the others: Go to Adam. And they would go to Adam and say: O Adam, thou art the father of mankind. Allah created thee by His own Hand and breathed in thee of His spirit and ordered the angels to prostrate before thee. Intercede for us with thy Lord Don't you see in what (trouble) we are? Don't you see what (misfortune) has overtaken us? Adam would say: Verily, my Lord is angry, to an extent to which He had never been angry before nor would He be angry afterward. Verily, He forbade me (to go near) that tree and I disobeyed Him. I am concerned with my own self. Go to someone else; go to Noah. They would come to Noah and would say: O Noah, thou art the first of the Messengers (sent) on the earth (after Adam), and Allah named thee as a" Grateful Servant," intercede for us with thy Lord. Don't you see in what (trouble) we are? Don't you see what (misfortune) has overtaken us? He would say: Verily, my Lord is angry today as He had never been angry before, and would never be angry afterwards. There had emanated a curse from me with which I cursed my people. I am concerned with only myself, I am concerned only with myself; you better go to Ibrahim (peace be upon him). They would go to Ibrahim and say: Thou art the apostle of Allah and His Friend amongst the inhabitants of the earth; intercede for us with thy Lord. Don't you see in which (trouble) we are? Don't you see what (misfortune) has overtaken us? Ibrahim would say to them: Verily, my Lord is today angry as He had never been angry before and would never be angry afterwards. and (Ibrahim) would mention his lies (and then say): I am concerned ...