Surah Ash-Shu'ara, Ayah 19
Quran 26:19 · The Poets · Makki · Para 19 · Page 367
وَفَعَلْتَ فَعْلَتَكَ الَّتِیْ فَعَلْتَ وَاَنْتَ مِنَ الْكٰفِرِیْنَ ۟
Transliteration
WafaAAalta faAAlataka allatee faAAaltawaanta mina alkafireen
Saheeh International
And [then] you did your deed which you did, and you were of the ungrateful."
Al-Mukhtasar fi Tafsir
You committed a serious deed when you killed the Copt in defence of a man of your people, and you are one of those who deny my favours to you.
Tafsir Ibn Kathir (abridged)
Explains 26:10–26:22 together — read it on 26:10