(19) باب قَبُولِ الصَّدَقَةِ مِنَ الْكَسْبِ الطَّيِّبِ وَتَرْبِيَتِهَا
Abu Huraira reported Allah's Messenger (ﷺ) as saying:
If anyone gives as Sadaqa the equivalent of a date from that (earning) earned honestly, for Allah accepts that which is lawful, the Lord would accept it with His Right Hand, and even if it is a date, it would foster in the Hand of the lord, as one of you fosters his colt, till it becomes bigger than a mountain.
Reference: Sahih Muslim 1014 a
In-book reference: Book 12, Hadith 79
USC-MSA web (English) reference(deprecated numbering scheme): Book 5, Hadith 2211