Ali Quli Qarai, The Qur’ān with a Phrase-by-Phrase English Translation (2005)

and punishes whomever He wishes,
and Allah is all-forgiving, all-merciful.
15 Those who were left to stay behind will say,
when you set out to capture booty:
‘Let us follow you.’
They desire to change the word of Allah.
Say, ‘You shall never follow us!
Thus has Allah said beforehand.’
Then they will say, ‘You are envious of us.’
Rather they do not understand but a little.
16 Say to the Bedouins who were left to stay behind,
‘You will be called against a people
of a great might:
they will embrace Islam, or you will fight them.
So if you obey, Allah will give you a good reward;
but if you turn away like you turned away before,
He will punish you with a painful punishment.’
17 There is no blame on the blind,
nor is there any blame on the lame,
nor is there blame on the sick;
and whoever obeys Allah and His Apostle,
He will admit him into gardens
with streams running in them,
and whoever refuses to comply,
He will punish him with a painful punishment.
18 Allah was certainly pleased with the faithful
when they swore allegiance to you under the tree.
He knew what was in their hearts,
so He sent down composure on them,
and requited them with a victory near at hand