Sunan Abi Dawud, Hadith 2860 ⓘ
Narrated AbuSa'id al-Khudri: The Prophet said: A man giving a dirham as sadaqah (charity) during his life is better than giving one hundred dirhams as sadaqah (charity) at the moment of his death.
حَدَّثَنَا أَحْمَدُ بْنُ صَالِحٍ، حَدَّثَنَا ابْنُ أَبِي فُدَيْكٍ، أَخْبَرَنِي ابْنُ أَبِي ذِئْبٍ، عَنْ شُرَحْبِيلَ، عَنْ أَبِي سَعِيدٍ الْخُدْرِيِّ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " لأَنْ يَتَصَدَّقَ الْمَرْءُ فِي حَيَاتِهِ بِدِرْهَمٍ خَيْرٌ لَهُ مِنْ أَنْ يَتَصَدَّقَ بِمِائَةٍ عِنْدَ مَوْتِهِ " .
also referenced under: Hadith 2866 (DarusSalam) & Book 17, Hadith 2860 (USC-MSA)