الفتح — Al-Fath Ayat 16
قُلْ لِّلْمُخَلَّفِيْنَ مِنَ الْاَعْرَابِ سَتُدْعَوْنَ اِلٰى قَوْمٍ اُولِيْ بَأْسٍ شَدِيْدٍ تُقَاتِلُوْنَهُمْ اَوْ يُسْلِمُوْنَ ۚ فَاِنْ تُطِيْعُوْا يُؤْتِكُمُ اللّٰهُ اَجْرًا حَسَنًا ۚ وَاِنْ تَتَوَلَّوْا كَمَا تَوَلَّيْتُمْ مِّنْ قَبْلُ يُعَذِّبْكُمْ عَذَابًا اَلِيْمًا
Qul lil-mukhallafīna minal-a‘rābi satud‘auna ilā qaumin ulī ba'sin syadīdin tuqātilūnahum au yuslimūn(a), fa'in tuṭī‘ū yu'tikumullāhu ajran ḥasanā(n), wa in tatawallau kamā tawallaitum min qablu yu‘ażżibkum ‘ażāban alīmā(n).
"Say to those who remained behind of the bedouins, "You will be called to [face] a people of great military might; you may fight them, or they will submit. So if you obey, Allah will give you a good reward; but if you turn away as you turned away before, He will punish you with a painful punishment.""