Maliks Muwatta Book 2, Hadith Number 63.
Section : Wudu on Account of Touching the Genitals.
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.”
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.”