3:141 wa li yumaH-HiSal-laahul-ladhiyna aamanuu wa yamHaqal kaafiriyn

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Ahmed Raza Khan: Mohammed Aqib Qadri:
And so that Allah may purify * the believers, and destroy the disbelievers. (* Forgive them their sins, if any.)

Yusuf Ali:
Allah's object also is to purge those that are true in Faith and to deprive of blessing Those that resist Faith.

Pickthal:
And that Allah may prove those who believe, and may blight the disbelievers.