Narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them) that the Messenger of Allah (peace and blessings of Allah be upon him) drank milk, then rinsed his mouth and said: "There is greasiness in milk."

Narrated from Ummul Momineen Aisha Siddiqa (may Allah be pleased with her) that the Messenger of Allah (peace and blessings of Allah be upon him) said: "When any one of you becomes drowsy while praying, he should (break the prayer and) go to sleep until his sleep goes away. Because if any one of you prays in a state of sleepiness, he does not know (what he is saying); perhaps he intends to seek forgiveness but (unknowingly) he may curse himself."

Narrated by Sayyiduna Anas (may Allah be pleased with him) from the Prophet Muhammad (peace and blessings be upon him) that he said: "When any one of you becomes drowsy during prayer, he should sleep until (his sleep goes away and) he understands what he is reciting."

Sayyiduna Anas (may Allah be pleased with him) says that the Noble Prophet (peace and blessings of Allah be upon him) used to perform ablution for every prayer. (He further) says that for each of us, one ablution was sufficient unless he committed hadath (lost his state of purity).

Narrated Ibn Abbas (may Allah be pleased with them) that the Prophet Muhammad (peace and blessings be upon him) passed by a garden from among the gardens of Madinah or Makkah and heard the voices of two men who were being punished in their graves. Then the Prophet (peace and blessings be upon him) said: "They are being punished, and (apparently) they are not being punished for a major matter." Then he (peace and blessings be upon him) said: "Yes (the fact is that) one of them did not protect himself from urine (splashes), and the other used to go about with tale-bearing." Then the Prophet (peace and blessings be upon him) asked for a branch, broke it into two pieces, and placed one piece on each of their graves. He was asked: O Messenger of Allah! Why did you do this? He (peace and blessings be upon him) replied: "It is hoped that their punishment will be lessened as long as these do not dry."

Anas bin Malik (may Allah be pleased with him) says that when the Messenger of Allah (peace and blessings of Allah be upon him) would go out to relieve himself, I would bring water for him and he would cleanse himself with that water.

Narrated Abu Huraira (may Allah be pleased with him): A Bedouin stood up and began to urinate in the mosque. The people wanted to attack him (i.e., beat him), but the Prophet (peace and blessings of Allah be upon him) said to them: "Leave him alone and pour a bucket of water over his urine, for you have been sent to make things easy, not to make things difficult."

Narrated from Umm Qais bint Mihsan (may Allah be pleased with her) that she brought her young child, who did not eat food, to the Messenger of Allah (peace and blessings be upon him). The Messenger of Allah (peace and blessings be upon him) seated the child in his lap, and the child urinated on his clothes. So the Messenger of Allah (peace and blessings be upon him) called for water and sprinkled it over the spot, and did not wash it.

Sayyiduna Hudhaifah (may Allah be pleased with him) says that the Noble Prophet (peace and blessings of Allah be upon him) came near a place where a people used to throw their garbage, and (there) he stood and urinated. Then he asked for water, so I brought water to him, and he performed ablution.

In one narration, it is reported from Hudhaifa (may Allah be pleased with him) that (when the Messenger of Allah, peace and blessings be upon him, once urinated behind a wall), I moved away from him, so the Messenger of Allah, peace and blessings be upon him, signaled to me. Thus, I went to him and stood behind him (that is, behind his back) until the Messenger of Allah, peace and blessings be upon him, finished (urinating).