(28) باب مَا جَاءَ فِي الْكِبْرِ
Narrated 'Abd Allah (b. Mas'ud):
The Messenger of Allah (ﷺ) as saying: He who has in his heart as much pride as much pride as grain of mustard-seed will not enter paradise. And he who has in his heart as much faith as grain of mustard-seed will not enter Hell.Abu Dawud said: Al-Qasmali has transmitted it from Al-A'mash in a similar way.
Reference: Sunan Abi Dawud 4091
In-book reference: Book 34, Hadith 72
English translation: Book 33, Hadith 4080