Sahih Muslim 2263
صحيح مسلم#2263SahihAbu Sa'id al-Khudri reported Allah's Messenger (way peace be upon him) as saying:No sadaqa (zakat) is payable on less than five wasqs of (dates or grains), on less than five camel-heads and on less than five uqiyas (of silver)
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 12:1