Surah Al-A'raf 7:123
قَالَ فِرْعَوْنُ ءَامَنتُم بِهِۦ قَبْلَ أَنْ ءَاذَنَ لَكُمْ ۖ إِنَّ هَـٰذَا لَمَكْرٌ مَّكَرْتُمُوهُ فِى ٱلْمَدِينَةِ لِتُخْرِجُوا۟ مِنْهَآ أَهْلَهَا ۖ فَسَوْفَ تَعْلَمُونَ
Said Pharaoh, "You believed in him before I gave you permission. Indeed, this is a conspiracy which you conspired in the city to expel therefrom its people. But you are going to know.
Translation: Saheeh International
Tafsir
Pharaoh said ‘Have you believed a-āmantum read pronouncing both hamzas and replacing the second one with an alif in him in Moses before I gave you leave? Surely this that you have done is a plot you have plotted in the city that you may expel its people from it. But you shall come to know what I will do to you!
Excerpt from Tafsir al-Jalalayn, commentary on 7:123, via Quran.com. The reader has the full commentary and 9 more tafsirs.