From Al-Husayn bin Al-Hasan bin Aban, from Al-Husayn bin Sa‘id, from Ibn Abi ‘Umayr, from ‘Umar bin Udhaynah, from Zurarah, who said: (Narrator said) "One day, I performed ablution (wudu) and did not wash my private part. Then I prayed, and afterward, I remembered. I asked Abu Abdullah عليه السلام about it, and Imam عليه السلام said: 'Wash your private part and repeat your prayer.'"