What was the Qu'anic Verse revealed concerning Zaid bin Haritha, the freed slave of Allah's Prophet Muhammad (peace be upon him)?
 Narrated `Abdullah bin `Umar:                     We used not to call Zaid bin Haritha the freed slave of Allah's Apostle except Zaid bin Muhammad till the Qu'anic Verse was revealed: "Call them (adopted sons) by (the names of) their fathers. That is more than just in the Sight of Allah." (33.5)