396 - Muhammad informed us, saying: Waki' reported to us, from Usamah ibn Zayd, from al-Zuhri, from Humayd ibn 'Abd al-Rahman ibn 'Awf, who said: There were a people from the people of Kufa who were spreading rumors to 'Umar against Sa'd. 'Umar said: "I shall not replace him until you are satisfied; for even if a lamb from the offspring of sheep were to perish, lost upon the banks of the Euphrates, I would fear that Allah would hold me accountable for it."