وَقَالَ رَجُلٌ مُّؤْمِنٌ مِّنْ ءَالِ فِرْعَوْنَ يَكْتُمُ إِيمَـٰنَهُۥٓ أَتَقْتُلُونَ رَجُلًا أَن يَقُولَ رَبِّىَ ٱللَّهُ وَقَدْ جَآءَكُم بِٱلْبَيِّنَـٰتِ مِن رَّبِّكُمْ ۖ وَإِن يَكُ كَـٰذِبًا فَعَلَيْهِ كَذِبُهُۥ ۖ وَإِن يَكُ صَادِقًا يُصِبْكُم بَعْضُ ٱلَّذِى يَعِدُكُمْ ۖ إِنَّ ٱللَّهَ لَا يَهْدِى مَنْ هُوَ مُسْرِفٌ كَذَّابٌ
At this, a believer from among the relatives of Fir'on, who had kept his faith hidden, said: "Will you kill a man merely because he says: `My Rabb is Allah, specially when he has brought you clear signs from your Rabb? If he is lying, may his lie be on his head; but if he is speaking the truth, then some of the dreadful things he is threatening you with may very well fall on you. Surely Allah does not guide the one who is a lying transgressor.