Surah Yusuf 12:89

قَالَ هَلْ عَلِمْتُم مَّا فَعَلْتُم بِيُوسُفَ وَأَخِيهِ إِذْ أَنتُمْ جَـٰهِلُونَ

He said, "Do you know what you did with Joseph and his brother when you were ignorant?"

Translation: Saheeh International

Tafsir

Then he said to them in rebuke ‘Do you realise what you did to Joseph in the way of beating him and selling him and otherwise and his brother oppressing him after having separated him from his brother while you were ignorant?’ of where the affair of Joseph will lead?

Excerpt from Tafsir al-Jalalayn, commentary on 12:89, via Quran.com. The reader has the full commentary and 9 more tafsirs.