And through this chain of narration, from Sa'd bin Abdullah, from Ahmad bin Muhammad, from his father, and Al-Husayn bin Sa'id, from Muhammad bin Abi Umayr, from Umar bin Udhaynah, from Zurara, who said: (Narrator said) 'I performed wudu one day but did not wash my private part, and then I prayed. I asked Abu Abdullah عليه السلام about this, and Imam عليه السلام said: "Wash your private part and repeat your prayer."'