Quran 12:15

فَلَمَّا ذَهَبُواْ بِهِۦ وَأَجۡمَعُوٓاْ أَن يَجۡعَلُوهُ فِى غَيَـٰبَتِ ٱلۡجُبِّ‌ۚ وَأَوۡحَيۡنَآ إِلَيۡهِ لَتُنَبِّئَنَّهُم بِأَمۡرِهِمۡ هَـٰذَا وَهُمۡ لَا يَشۡعُرُونَ ١٥

When they went away with him, and unanimously decided to throw him into the abyss of the well, we inspired him: "Some day, you will tell them about all this, while they have no idea."