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 It is not given to any soul to die except with the leave of Allah, and at an appointed time. And he who desires his reward in this world, We shall grant him the reward of this world; and he who desires the reward of the Other World, We shall grant him the reward of the Other World. And soon shall We reward the ones who are grateful. 145 And with how many a prophet have there been a number of devoted men who fought (beside him). They quailed not for aught that befell them in the way of Allah, nor did they weaken, nor were they brought low. Allah loveth the steadfast. 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 and so God gave them both the rewards of this life and the excellent recompense of the life to come: God loves those who do good. 148