Imam Bukhari narrates: Ishaq bin Mansur narrated to us, he said: Abdur Razzaq narrated to us, he said: Ma'mar informed us, from Hammam, from Hazrat Abu Hurairah (may Allāh be pleased with him), that the Messenger of Allāh ﷺ said:

When any one of you practices Islam well, every good deed he does is written for him from tenfold to seven-hundredfold, and every bad deed he does is written as only that one bad deed.