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 And no human being can die save by God's leave, at a term pre-ordained. And if one desires the rewards of this world, We shall grant him thereof; and if one desires the rewards of the life to come, We shall grant him thereof; and We shall requite those who are grateful [to Us]. 145 And many Prophets have fought in Allah’s cause – and many devoted men were with them; so neither did they lose heart due to the calamities that befell them in Allah's cause, nor did they weaken and nor were they subdued; and the steadfast are the beloved of Allah. 146 And they never said anything except that they invoked, “Our Lord! Forgive us our sins and the excesses committed during our efforts, and keep our feet steady, and bestow us help over the disbelievers.” 147 And God gave them the reward of this world and the fairest reward of the world to come; and God loves the good-doers. 148