Qur'an 28:4

إِنَّ فِرْعَوْنَ عَلَا فِى ٱلْأَرْضِ وَجَعَلَ أَهْلَهَا شِيَعًا يَسْتَضْعِفُ طَآئِفَةً مِّنْهُمْ يُذَبِّحُ أَبْنَآءَهُمْ وَيَسْتَحْىِۦ نِسَآءَهُمْ ۚ إِنَّهُۥ كَانَ مِنَ ٱلْمُفْسِدِينَ

Lo! Pharaoh exalted himself in the earth and made its people castes. A tribe among them he oppressed, killing their sons and sparing their women. Lo! he was of those who work corruption.