Whenever a group brought their charity to the Messenger of Allah ﷺ, he would say, "Allah, send blessings upon the family of so-and-so."When my father brought his charity, he said, "Allah, send blessings upon the family of Abu Awfa."
أخبرنا عمرو بن يزيد قال حدثنا بهز بن أسد قال حدثنا شعبة قال عمرو بن مرة أخبرني قال سمعت
كان رسول الله ﷺ إذا أتاه قوم بصدقتهم قال اللهم صل على آل فلان فأتاه أبي بصدقته فقال اللهم صل على آل أبي أوفى
Its takhrij (source citation) is that Bukhari narrated it in the Book of Zakat, chapter on the imam's prayer and his supplication for the giver of charity, etc., hadith no. 1497, and Muslim in the Book of Zakat, chapter on supplication for one who brings charity, hadith no. 1078, from the hadith of Shubah through this same route, and it is also found in Sunan al-Kubra, hadith no. 2239.