(32) باب مَا يُتَّقَى مِنْ مُحَقَّرَاتِ الذُّنُوبِ
Narrated Ghailan:
Anas said "You people do (bad) deeds (commit sins) which seem in your eyes as tiny (minute) than hair while we used to consider those (very deeds) during the life-time of the Prophet (ﷺ) as destructive sins."
Reference: Sahih al-Bukhari 6492
In-book reference: Book 81, Hadith 81
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 8, Book 76, Hadith 499