Jabir b. 'Abdullah reported Allah's Messenger (ﷺ) as saying:
No Sadaqa is payable on less than five fiqiyas of silver, and on less than five heads of camels, and less than five wasqs of dates. (DE)
Reference (DE): Sahih Muslim 980 (DE)
In-book reference (DE): Book 12, Hadith 9 (DE)
USC-MSA web (English) reference(deprecated numbering scheme): Book 5, Hadith 2142 (DE)