(225) بَابُ الظُّلْمُ ظُلُمَاتٌ
Jabir ibn 'Abdullah reported that the Prophet, may Allah blesshim and grant him peace, said, "Fear injustice. Injustice will appear asdarkness on the Day of Rising. Fear avarice. Avarice destroyed people beforeyou and led them to shed one another's blood and to make lawful what wasunlawful for them."
Reference: Al-Adab Al-Mufrad 483
In-book reference: Book 28, Hadith 1
English translation: Book 28, Hadith 483