(31) باب حُسْنِ إِسْلاَمِ الْمَرْءِ
Narrated Abu Huraira:
Allah's Messenger (ﷺ) said, "If any one of you improve (follows strictly) his Islamic religion then his good deeds will be rewarded ten times toseven hundred times for each good deed and a bad deed will be recordedas it is."
Reference: Sahih al-Bukhari 42
In-book reference: Book 2, Hadith 35
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 1, Book 2, Hadith 41