15:2 rubamaa yawad-dul-ladhiyna kafaruu law kaanuu muslimiyn
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Ahmed Raza Khan: Mohammed Aqib Qadri:
The disbelievers will ardently wish that if only they had been Muslims! ( At the time of death / in their graves / on the Day of Resurrection.)
Again and again will those who disbelieve, wish that they had bowed (to Allah's will) in Islam.
It may be that those who disbelieve wish ardently that they were Muslims.