Umar ibn al-Khattab · The Book of Purification and its Sunnah

"I was with the Prophet on a journey. He went away to relieve himself, then he came and called for water and performed ablution."

"I entered upon 'Ali bin Abu Talib and he said: 'The Messenger of Allah used to go to the lavatory and relieve himself, then come out, and he would eat bread and meat with us and recite Qur'an, nothing stopped him' or perhaps he said: 'prevented him from doing so except sexual impurity.'"