´It was narrated from Abu Sa'eed Al_khudri that the Prophet said:` "No sadaqah is due on less than five Awaq, no Sadaqah is due on less than five Dhawd, no Sadaqah is due on less than five Awsuq."
Hadith ReferenceSunan an-Nasa'i / The Book of Zakah / Hadith: 2489