Sahih Muslim 1151
Sahih Muslim · Book 13: The Book of Fasting · The Virtue of Fasting
A hadith like this is narrated on the authority of Abu Sinan with the same chain of transmitters (and the words are):
وَحَدَّثَنِيهِ إِسْحَاقُ بْنُ عُمَرَ بْنِ سَلِيطٍ الْهُذَلِيُّ ، حَدَّثَنَا عَبْدُ الْعَزِيزِ، - يَعْنِي ابْنَ مُسْلِمٍ - حَدَّثَنَا ضِرَارُ بْنُ مُرَّةَ، - وَهُوَ أَبُو سِنَانٍ - بِهَذَا الإِسْنَادِ قَالَ وَقَالَ " إِذَا لَقِيَ اللَّهَ فَجَزَاهُ فَرِحَ " .
" As he meets Allah, He rewards him, and he is happy."