Yahya related from Malik from Ibn Shihab that Salim ibn Abdullah said, "I saw my father Abdullah ibn Umar, do ghusl and then do wudu. I said to him, 'Father, isn't ghusl enough for you?' He said, 'Of course, but sometimes I touch my penis, so I do wudu.' "
Muwatta Malik Book 2, Hadith 63
← Previous Hadith Yahya related to me from Malik from Hisham ibn Urwa that his father used to say, "If any of you touches his penis he has to do wudu."

Muwatta Malik Book 2, Hadith 62 Next Hadith → 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 said, 'After I had done wudu for the subh prayer, I touched my genitals. Then I forgot to do wudu. So I did wudu again and repeated my prayer.' "

Muwatta Malik Book 2, Hadith 64