Narrated Ibn Abi `Aufa:

Whenever somebody brought alms to the Prophet (s.a.w.a.) the used to say, "Allahumma Salli 'Alaihi (O Allah! Send Your Salat (Grace and Honor) on him)." Once when my father brought his alms to him, he said, "O Allah! Send Your Salat (Grace and Honor) on the family of Abi `Aufa."

'Abdullah b. Abu Aufa said that it was the common practice of the Messenger of Allah (s.a.w.a.) that when the people brought to him sadaqa he blessed them:

O Allah, bless them. So when Abu Aufa brought to him Sadaqa he (the Holy Prophet) said: O Allah, bless, the posterity of Abu Aufa.