Sahih al-Bukhari 7501
Narrated Abu Huraira:
Allah's Messenger (ﷺ) said, "Allah says, 'If My slave intends to do a bad deed then (O Angels) do not write 
it unless he does it; if he does it, then write it as it is, but if he refrains from doing it for My Sake, then 
write it as a good deed (in his account). (On the other hand) if he intends to do a good deed, but does 
not do it, then write a good deed (in his account), and if he does it, then write it for him (in his 
account) as ten good deeds up to seven-hundred times.' "
حَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، حَدَّثَنَا الْمُغِيرَةُ بْنُ عَبْدِ الرَّحْمَنِ، عَنْ أَبِي الزِّنَادِ، عَنِ الأَعْرَجِ، عَنْ أَبِي هُرَيْرَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ ‏
"‏ يَقُولُ اللَّهُ إِذَا أَرَادَ عَبْدِي أَنْ يَعْمَلَ سَيِّئَةً فَلاَ تَكْتُبُوهَا عَلَيْهِ حَتَّى يَعْمَلَهَا، فَإِنْ عَمِلَهَا فَاكْتُبُوهَا بِمِثْلِهَا وَإِنْ تَرَكَهَا مِنْ أَجْلِي فَاكْتُبُوهَا لَهُ حَسَنَةً وَإِذَا أَرَادَ أَنْ يَعْمَلَ حَسَنَةً فَلَمْ يَعْمَلْهَا فَاكْتُبُوهَا لَهُ حَسَنَةً، فَإِنْ عَمِلَهَا فَاكْتُبُوهَا لَهُ بِعَشْرِ أَمْثَالِهَا إِلَى سَبْعِمِائَةٍ ‏"‏‏.‏