3:144 wa maa muHam-madun il-laa rasuulun qad khalat min qablihir rusul* a fa im-maata aw qutilanqalabtum 'Alaa a'Åqaabikum* wa may yanqalib 'Alaa 'Aqibayhi falay yaDur-ral-laaha shay'aa* wa sa yajzil-laahush shaakiriyn

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Ahmed Raza Khan: Mohammed Aqib Qadri:
And Mohammed (peace and blessings be upon him) is purely * a Noble Messenger; there have been Noble Messengers before him; so if he departs or is martyred, will you turn back on your heels? So whoever turns back on his heels does not cause any harm to Allah; and Allah will soon reward the thankful. (* Neither God nor an angel, but a human being with the highest spiritual status.)

Yusuf Ali:
Muhammad is no more than a messenger: many Were the messenger that passed away before him. If he died or were slain, will ye then Turn back on your heels? If any did turn back on his heels, not the least harm will he do to Allah; but Allah (on the other hand) will swiftly reward those who (serve Him) with gratitude.

Pickthal:
Muhammad is but a messenger, messengers (the like of whom) have passed away before him. Will it be that, when he dieth or is slain, ye will turn back on your heels? He who turneth back on his heels doth no hurt to Allah, and Allah will reward the thankful.