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 how many a prophet has had to fight [in God's cause,] followed by many God-devoted men: and they did not become faint of heart for all that they had to suffer in God's cause, and neither did they weaken, nor did they abase themselves [before the enemy,] since God loves those who are patient in adversity; 146 Their only words were: 'Lord, forgive us our sins and that we exceeded in our affair, make us firm of foot and give us victory over the unbelievers' 147 God gave them their reward in this world and the best reward of the life to come. God loves the righteous ones. 148