The Prophet ﷺ said, "There is no zakat on anything less than five Aws-loads."
أن النبي ﷺ قال: ليس فيما دون خمسة أوسق صدقة.
Bukhari related it in the Book of zakat (1405), and Muslim in the Book of zakat (979), both from the hadith of Amr bin Yahya bin Umara, from his father, from Abu Saeed Khudri, who narrated it.In a wording found in Muslim, "There is no obligatory charity due on grain or dates until they reach five wasq."