قُلْ لِّـلْمُخَلَّفِيْنَ مِنَ الْاَعْرَابِ سَـتُدْعَوْنَ اِلٰى قَوْمٍ اُولِيْ بَاْسٍ شَدِيْدٍ تُقَاتِلُوْنَہُمْ اَوْ يُسْلِمُوْنَ۰ۚ فَاِنْ تُطِيْعُوْا يُؤْتِكُمُ اللہُ اَجْرًا حَسَـنًا۰ۚ وَاِنْ تَتَوَلَّوْا كَـمَا تَوَلَّيْتُمْ مِّنْ قَبْلُ يُعَذِّبْكُمْ عَذَابًا اَلِـــيْمًا۱۶
Qul lilmukhallafeena mina alaAArabi satudAAawna ila qawmin olee basin shadeedin tuqatiloonahum aw yuslimoona fain tuteeAAoo yutikumu Allahu ajran hasanan wain tatawallaw kama tawallaytum min qablu yuAAaththibkum AAathaban aleeman
Say to the desert Arabs who had stayed behind: "You will be called against a formidable people. You will fight them till they surrender. If you obey, then He will give you a good reward; but if you turn back, as you had done before, He will punish you with a grievous affliction."