The Messenger of Allah ﷺ said, "When you give zakat, do not forget to seek its reward by saying, 'Allah, make it a gain and do not make it a loss.'"
حدثنا سويد بن سعيد حدثنا الوليد بن مسلم عن البختري بن عبيد عن أبيه
قال رسول الله ﷺ إذا أعطيتم الزكاة فلا تنسوا ثوابها أن تقولوا اللهم اجعلها مغنما ولا تجعلها مغرما
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[Its chain of transmission is fabricated] Bukhtari bin Ubayd is daif and discarded (Taqrib*). Busiri said, "There is agreement on his weakness." Hakim, Abu Naeem, and others said he narrated fabricated reports from his father from Abu Hurairah. Ibn Hibban and others criticized him.