17:82 wa nunaz-zilu minal qur'aani maa huwa shifaauw wa raHmatul lil mu'miniyna wa laa yaziyduZ Zaalimiyna il-laa khasaaraa

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Ahmed Raza Khan: Mohammed Aqib Qadri:
And We send down in the Qur'an that which is a cure for the Muslims, and a mercy - and it increases only ruin for the unjust.

Yusuf Ali:
We send down (stage by stage) in the Qur'an that which is a healing and a mercy to those who believe: to the unjust it causes nothing but loss after loss.

Pickthal:
And We reveal of the Qur'an that which is a healing and a mercy for believers though it increase the evil-doers in naught save ruin.