I was with Allah's Messenger (SAW) along with some people when he was saying, "I have intended to prohibit Ghila (sexual intercourse with a woman who is breast-feeding), but I considered the Romans and the Persians and saw that they engaged in Ghila without any injury being caused to their children thereby." Then they asked him about 'Azl (withdrawing the penis before emission of semen, to avoid conception), and Allah's Messenger (SAW) replied, "That is the secret (way of) burying alive." [Reported by Muslim]

“We began our Talbiyah for Hajj only with Allah’s Messenger (saw), and we did not mix it with ‘Umrah. We arrived in Makkah when four nights of Dhul-Hijjah had passed, and when we had performed Tawaf around the Ka’bah and Sa’y between Safa and Marwah, the Messenger of Allah (saw) commanded us to make it ‘Umrah, and to come out of Ihram and have relations with our wives. We said: ‘There are only five (days) until ‘Arafah. Will we g out to it with our male organs dripping with semen?’ The Messenger of Allah (saw) said: ‘I am the most righteous and truthful among you, and were it not for the sacrificial animal, I would have exited Ihram.’ Suraqah bin Malik said: ‘Is this Tamattu’ for this year only or forever?’ He said: ‘No, it is forever and ever.’”

Messenger of Allah (PBUH), the truthful and the receiver of the truth informed us, saying, "The creation of you (humans) is gathered in the form of semen in the womb of your mother for forty days, then it becomes a clinging thing in similar (period), then it becomes a lump of flesh like that, then Allah sends an angel who breathes the life into it; and (the angel) is commanded to record four things about it: Its provision, its term of life (in this world), its conduct; and whether it will be happy or miserable. By the One besides Whom there is no true god! Verily, one of you would perform the actions of the dwellers of Jannah until there is only one cubit between him and it (Jannah), when what is foreordained would come to pass and he would perform the actions of the inmates of Hell until he enter it. And one of you would perform the actions of the inmates of Hell, until there is only one cubit between him and Hell. Then he would perform the acts of the dwellers of Jannah until he would enter it."

[Al- Bukhari and Muslim].

Yahya related to me from Malik from Abd arRahman ibn Harmala that a man asked Said ibn al-Musayyab about what a man who was junub and had done tayammum should do when he came across water. Said said, "When he comes across water he must do ghusl for what comes after."

Malik said about some one who had a wet dream while he was on a journey and there was only enough water for wudu and he was not thirsty and so he did not need to use it for that, "Let him wash his genitals, and whatever the semen has fallen on, with the water and then he does tayammum with good earth as Allah has ordered him."

Malik was asked whether a man who was junub and wished to do tayammum but could only find salty earth could do tayammum with that earth, and whether it was disapproved of to pray on salty earth. He said, "There is no harm in praying on salty earth or in using it to do tayammum, because Allah the Blessed and Exalted has said, '...and do tayammum with good earth.' One is purified by tayammum with everything that is earth, whether it is salty or otherwise."

Yahya related to me from Malik from Hisham ibn Urwa from his father fromYahyaibn Abd ar-Rahman ibn Ha ib that he had set off for Mumra with Umar ibn al-Khattab in a party of riders, among whom was Amr ibn al-As. Umar ibn al-Khattab dismounted for a rest late at night on a certain road near a certain oasis. Umar had a wet dream when it was almost dawn and there was no water among the riding party. He rode until he came to some water and then he began to wash off what he saw of the semen until it had gone. Amr ibn al-As said to him, "It is morning and there are clothes with us, so allow your garment to be washed. ''Umar ibn al-Khattab said to him, "I am surprised at you, Amr ibn al-As! Even if you could find clothes, would everybody be able to find them? By Allah, if I were to do it, it would become a sunna. No, I wash what I see, and I sprinkle with water what I do not see."

Malik spoke about a man who found traces of a wet dream on his clothes and did not know when it had occurred and did not remember anything he had seen in his sleep. He said, "Let the intention of his ghusl be from the time when he last slept, and if he has prayed since that last sleep he should repeat it. This is because often a man has a wet dream and sees nothing, and often he sees something but does not have an emission. But, if he finds liquid on his garment he must do ghusl. This is because Umar repeated what he had prayed after the time he had last slept and not what was before it."