وَمَا مُحَمَّدٌ إِلَّا رَسُولٌ قَدْ خَلَتْ مِن قَبْلِهِ ٱلرُّسُلُ ۚ أَفَإِي۟ن مَّاتَ أَوْ قُتِلَ ٱنقَلَبْتُمْ عَلَىٰٓ أَعْقَـٰبِكُمْ ۚ وَمَن يَنقَلِبْ عَلَىٰ عَقِبَيْهِ فَلَن يَضُرَّ ٱللَّهَ شَيْـًٔا ۗ وَسَيَجْزِى ٱللَّهُ ٱلشَّـٰكِرِينَ
Wa maa Muhammadun illaa Rasoolun qad khalat min qablihir Rusul; afa'im maata aw qutilan qalabtum 'alaaa a'qaabikum; wa mai yanqalib 'alaa aqibihi falai yadurral laaha shai'aa; wa sayajzil laahush shaakireen
Muhammad is only a messenger; messengers have passed away before him. If he dies or is killed, will you turn back on your heels? Whoever turns back on their heels does no harm to God at all, and God will reward the grateful.