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. (JA)
Reference (JA): Sahih Muslim 980 (JA)
In-book reference (JA): Book 12, Hadith 9 (JA)
USC-MSA web (English) reference(deprecated numbering scheme): Book 5, Hadith 2142 (JA)