9:40 il-laa tanSuruuhu faqad naSarahul-laahu idh akhrajahul-ladhiyna kafaruu thaaniyathnayni idh humaa fiyl gaari idh yaquulu li SaaHibihii laa taHzan in-nal-laaha ma'Anaa* fa anzalal-laahu sakiynatahuu 'Alayhi wa ay-yadahuu bi junuudil lam tarawhaa wa ja'Ala kalimatal-ladhiyna kafarus suflaa* wa kalimatul-laahi hiyal 'Ulyaa* wal-laahu 'Aziyzun Hakiym

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Ahmed Raza Khan: Mohammed Aqib Qadri:
If you do not help him (Prophet Mohammed - peace and blessings be upon him), Allah has helped him - when he had to go forth due to the mischief of the disbelievers, just as two men * - when they were in the cave, when he was saying to his companion "Do not grieve; indeed Allah is with us"; then Allah caused His calm to descend upon him and helped him with armies you did not see, and disgraced the word of the disbelievers; and Allah’s Word is supreme; and Allah is the Almighty, the Wise. (* The Holy Prophet migrated only with S. Abu Bakr (who later became the first caliph) as his sole companion.)

Yusuf Ali:
If ye help not (your leader), (it is no matter): for Allah did indeed help him, when the Unbelievers drove him out: he had no more than one companion; they two were in the cave, and he said to his companion, "Have no fear, for Allah is with us": then Allah sent down His peace upon him, and strengthened him with forces which ye saw not, and humbled to the depths the word of the Unbelievers. But the word of Allah is exalted to the heights: for Allah is Exalted in might, Wise.

Pickthal:
If ye help him not, still Allah helped him when those who disbelieve drove him forth, the second of two; when they two were in the cave, when he said unto his comrade: Grieve not. Lo! Allah is with us. Then Allah caused His peace of reassurance to descend upon him and supported him with hosts ye cannot see, and made the word of those who disbelieved the nethermost, while Allah's Word it was that became the uppermost. Allah is Mighty, Wise.