Al-Adab Al-Mufrad, Book 28, Hadith 485 (English) ⓘ
Ibn 'Umar reported that the Prophet, may Allah bless him and grant him peace, said, "Injustice will appear as darkness on the Day of Rising."
حَدَّثَنَا أَحْمَدُ بْنُ يُونُسَ، قَالَ: حَدَّثَنَا عَبْدُ الْعَزِيزِ بْنُ الْمَاجِشُونِ قَالَ: أَخْبَرَنِي عَبْدُ اللهِ بْنُ دِينَارٍ، عَنِ ابْنِ عُمَرَ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ: الظُّلْمُ ظُلُمَاتٌ يَوْمَ الْقِيَامَةِ.
also referenced under: Hadith 485 (Reference) & Book 28, Hadith 3 (In-Book)