22:55 wa laa yazaalul-ladhiyna kafaruu fiy miryatim minhu Hat-taa ta'tiyahumus saa'Atu bagtatan aw ya'tiyahum 'Adhaabu yawmin 'Aqiym

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Ahmed Raza Khan: Mohammed Aqib Qadri:
And the disbelievers will always be in doubt of it, to the extent that the Last Day will suddenly come upon them, or will come upon them the punishment of a day the result of which is not at all good for them.

Yusuf Ali:
Those who reject Faith will not cease to be in doubt concerning (Revelation) until the Hour (of Judgment) comes suddenly upon them, or there comes to them the Penalty of a Day of Disaster.

Pickthal:
And those who disbelieve will not cease to be in doubt thereof until the Hour come upon them unawares, or there come unto them the doom of a disastrous day.