ثُمَّ بَدَا لَهُم مِّنۢ بَعْدِ مَا رَأَوُا۟ ٱلْءَايَٰتِ لَيَسْجُنُنَّهُۥ حَتَّىٰ حِينٍ

Then it occurred to them after they had seen the signs that they should imprison him till a time.