(19) باب قَبُولِ الصَّدَقَةِ مِنَ الْكَسْبِ الطَّيِّبِ وَتَرْبِيَتِهَا
Abu Huraira reported Allah's Messenger (ﷺ) as saying:
No one gives Sadaqa of a date out of his honest earning, but Allah accepts it with His Right Hand, and then fosters it as one of you fosters the colt or a young she-camel, till it becomes like a mountain or even greater.
Reference: Sahih Muslim 1014 b
In-book reference: Book 12, Hadith 80
USC-MSA web (English) reference(deprecated numbering scheme): Book 5, Hadith 2212