The Book of Zakah
23/14. Chapter:
When There Is An Infraction In The Sadaqah (Collected)
Sunan an-Nasai
أَخْبَرَنَا زِيَادُ بْنُ أَيُّوبَ، قَالَ حَدَّثَنَا إِسْمَاعِيلُ، - هُوَ ابْنُ عُلَيَّةَ - قَالَ أَنْبَأَنَا دَاوُدُ، عَنِ الشَّعْبِيِّ، قَالَ قَالَ جَرِيرٌ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " إِذَا أَتَاكُمُ الْمُصَدِّقُ فَلْيَصْدُرْ وَهُوَ عَنْكُمْ رَاضٍ " .
It was narrated that Ash-Shabbi said: "Jarir said: 'The Messenger of Allah said: When the Zakah collector comes to you, let him leave happy with you."'
Reference : Sunan an-Nasa'i 2461In-book reference : Book 23, Hadith 27English translation : Vol. 3, Book 23, Hadith 2463