And Muhammad ibn Ahmad ibn Abi Khalaf narrated to me, Rawh narrated to us, Abu Malik, Ubaydullah ibn al-Akhnas, informed me Nafi', on the authority of Abdullah ibn Umar — may Allah be pleased with them both — who said: The fast of the day of Ashura was mentioned in the presence of the Prophet, peace and blessings be upon him. And he mentioned the like of the hadith of Layth ibn Sa'd, exactly the same.