The Book of Zakah
23/62. Chapter:
Counting What One Give In Charity
Sunan an-Nasai
أَخْبَرَنَا مُحَمَّدُ بْنُ آدَمَ، عَنْ عَبْدَةَ، عَنْ هِشَامِ بْنِ عُرْوَةَ، عَنْ فَاطِمَةَ، عَنْ أَسْمَاءَ بِنْتِ أَبِي بَكْرٍ، أَنَّ النَّبِيَّ صلى الله عليه وسلم قَالَ لَهَا " لاَ تُحْصِي فَيُحْصِيَ اللَّهُ عَزَّ وَجَلَّ عَلَيْكِ " .
It was narrated from Asma' bint Abi Bakr that the Prophet said to her: "Do not count what you give, otherwise Allah, the Mighty and Sublime, will count what He gives to you."
Reference : Sunan an-Nasa'i 2550In-book reference : Book 23, Hadith 116English translation : Vol. 3, Book 23, Hadith 2551