Sunan an-Nasa'i, Volume 3, Book 23, Hadith 2477 (DarusSalam) ⓘ
It was narrated from Abu Sa 'eed Al-Khudri that he heard the Messenger of Allah say: "No Sadaqah is due on less than five Awsaq[2] of dates, no Sadaqah is due on less than five Awaq of silver, and no Sadagah is due on less than five Dhawd (head) of camels."
أَخْبَرَنَا هَارُونُ بْنُ عَبْدِ اللَّهِ، قَالَ حَدَّثَنَا أَبُو أُسَامَةَ، عَنِ الْوَلِيدِ بْنِ كَثِيرٍ، عَنْ مُحَمَّدِ بْنِ عَبْدِ الرَّحْمَنِ بْنِ أَبِي صَعْصَعَةَ، عَنْ يَحْيَى بْنِ عُمَارَةَ، وَعَبَّادِ بْنِ تَمِيمٍ، عَنْ أَبِي سَعِيدٍ الْخُدْرِيِّ، أَنَّهُ سَمِعَ رَسُولَ اللَّهِ صلى الله عليه وسلم يَقُولُ " لاَ صَدَقَةَ فِيمَا دُونَ خَمْسِ أَوْسَاقٍ مِنَ التَّمْرِ وَلاَ فِيمَا دُونَ خَمْسِ أَوَاقٍ مِنَ الْوَرِقِ صَدَقَةٌ وَلاَ فِيمَا دُونَ خَمْسِ ذَوْدٍ مِنَ الإِبِلِ صَدَقَةٌ " .
also referenced under: Hadith 2475 (Reference) & Book 23, Hadith 0 (In-Book)