Sahih al-Bukhari 4166
Book 64: Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi) · Narrated by `Abdullah bin Abi `Aufa
Arabic
حَدَّثَنَا آدَمُ بْنُ أَبِي إِيَاسٍ، حَدَّثَنَا شُعْبَةُ، عَنْ عَمْرِو بْنِ مُرَّةَ، قَالَ سَمِعْتُ عَبْدَ اللَّهِ بْنَ أَبِي أَوْفَى ـ وَكَانَ مِنْ أَصْحَابِ الشَّجَرَةِ ـ قَالَ كَانَ النَّبِيُّ صلى الله عليه وسلم إِذَا أَتَاهُ قَوْمٌ بِصَدَقَةٍ قَالَ " اللَّهُمَّ صَلِّ عَلَيْهِمْ ". فَأَتَاهُ أَبِي بِصَدَقَتِهِ فَقَالَ " اللَّهُمَّ صَلِّ عَلَى آلِ أَبِي أَوْفَى ".
English translation
Narrated `Abdullah bin Abi `Aufa:(Who was one of those who had given the Pledge of allegiance to the Prophet (ﷺ) beneath the Tree) When the people brought Sadaqa (i.e. Zakat) to the Prophet (ﷺ) he used to say, "O Allah! Bless them with your Mercy." Once my father came with his Sadaqa to him whereupon he (i.e. the Prophet) said. "O Allah! Bless the family of Abu `Aufa
Reference: Sahih al-Bukhari 4166, Book of Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi). English translation by Dr. Muhammad Muhsin Khan.