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Yahya related to me from Malik from Ismail ibn Muhammad ibn Sad ibn Abi Waqqas that Musab ibn Sad ibn Abi Waqqas said, "I was holding the Book for Sad ibn Abi Waqqas and I rubbed myself. Sad said, 'Did you touch your penis?' I replied, 'Yes

Yahya related to me from Malik from Nafi that Abdullah ibn Umar used to say, "If you touch your penis you have to do wudu."

Yahya related to me from Malik from Nafi that Salim ibn 'Abdullah said, "I was with Abdullah ibn Umar on a journey and after the sun had risen I saw him do wudu and then pray. So I said to him, 'This isn't a prayer that you normally do. 'He