Abdullah bin Abu Bakr (may Allah be pleased with them both) narrates that my father (Sayyiduna Abu Bakr, may Allah be pleased with him) and ‘Urwah (may Allah have mercy on him) began discussing the nullifiers of wudu. During the discussion, ‘Urwah (may Allah have mercy on him) mentioned that touching the private part breaks wudu. My father said: I have not heard this. ‘Urwah (may Allah have mercy on him) said: Marwan has informed me from Busrah (may Allah be pleased with her) that the Prophet (peace and blessings of Allah be upon him) said: Whoever touches his private part should perform wudu. We said: Send someone to Busrah (may Allah be pleased with her). So Marwan sent a guard or someone else to her, and the messenger brought back the same answer (as ‘Urwah, may Allah have mercy on him, had said).