(8) باب الظُّلْمُ ظُلُمَاتٌ يَوْمَ الْقِيَامَةِ
Narrated Ibn `Umar:
The Prophet (ﷺ) said, "Oppression will be a darkness on the Day of Resurrection."
Reference: Sahih al-Bukhari 2447
In-book reference: Book 46, Hadith 8
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 3, Book 43, Hadith 627