وَلَوْ اَنَّا كَتَبْنَا عَلَيْهِمْ اَنِ اقْتُلُوْٓا اَنْفُسَكُمْ اَوِ اخْرُجُوْا مِنْ دِيَارِكُمْ مَّا فَعَلُوْهُ اِلَّا قَلِيْلٌ مِّنْهُمْ ۗوَلَوْ اَنَّهُمْ فَعَلُوْا مَا يُوْعَظُوْنَ بِهٖ لَكَانَ خَيْرًا لَّهُمْ وَاَشَدَّ تَثْبِيْتًاۙ ( النساء: ٦٦ )
Wa law annaa katabnaa 'alaihim aniq tulooo anfusakum awikh rujoo min diyaarikum maa fa'aloohu illaa qaleelum minhum wa law annahum fa'aloo maa yoo'azoona bihee lakaana khairal lahum wa ashadda tasbeetaa (an-Nisāʾ 4:66)
And if We had decreed upon them, "Kill yourselves" or "Leave your homes," they would not have done it, except for a few of them. But if they had done what they were instructed, it would have been better for them and a firmer position [for them in faith]. (An-Nisa  : 66)
1 Mufti Taqi Usmani
If We had prescribed for them that they should kill themselves or that they should migrate from their homeland, they would have not done it, except a few of them. If they had done what they were advised to do, it would have been better for them, and more effective in making (them) firm.