Surah Al-Fajr, Ayah 12
Quran 89:12 · The Dawn · Makki · Para 30 · Page 599
فَاَكْثَرُوْا فِیْهَا الْفَسَادَ ۟
Transliteration
Faaktharoo feeha alfasad
Saheeh International
And increased therein the corruption.
Al-Mukhtasar fi Tafsir
They caused an abundance of corruption due to spreading disbelief and sins.
Tafsir Ibn Kathir (abridged)
Explains 89:1–89:14 together — read it on 89:1