Muhammad is only a messenger. Messengers have passed away before him. If he should die, or be killed, will you turn back on your heels? Those who turn on their heels do not harm the Lord in the least. God will reward the grateful. 144 No soul can ever die except by Allah's leave and at a term appointed. Whoso desireth the reward of the world, We bestow on him thereof; and whoso desireth the reward of the Hereafter, We bestow on him thereof. We shall reward the thankful. 145 Many godly people fought to help the Prophets in the cause of God. They did not lose courage, show weakness, or give in when facing hardships in their fight for the cause of God. God loves those who have patience. 146 Nor did they say aught but: "O our Lord, forgive us our sins and excesses in our acts, and steady our steps, and help us against unbelieving people." 147 Wherefore Allah vouchsafed unto them the reward of the world, and the excellent reward of the Hereafter. And Allah loveth the well-doers. 148