Narrated Ibn Shihab Az-Zuhri:
Anas bin Malik said, "When the emigrants came Medina, they had nothing whereas the Ansar had land and property. The Ansar gave them their land on condition that the emigrants would give...
O Allah, do not call me to account for what they say and forgive me for what they have no knowledge of [and make me better than they imagine].
Info: Al-Bukhari, Al-'Adabul-Mufrad no. 761. See Al-Albani, Sahih Al-'Adabul-Mufrad (no. 585). The portion between brackets if from Al-Bayhaqi, Shu'ab Al-Iman 4/228, and comes another account.