Yusuf Ali
And those who believe will say: "Are these the men who swore their strongest oaths by Allah, that they were with you?" All that they do will be in vain, and they will fall into (nothing but) ruin.

Sahih International
And those who believe will say, "Are these the ones who swore by Allah their strongest oaths that indeed they were with you?" Their deeds have become worthless, and they have become losers.

Shakir
And those who believe will say: Are these they who swore by Allah with the most forcible of their oaths that they were most surely with you? Their deeds shall go for nothing, so they shall become losers.

Pickthall
Then will the believers say (unto the people of the Scripture): are these they who swore by Allah their most binding oaths that they were surely with you? Their works have failed, and they have become the losers.

محمد جالندھری
اور اس (وقت) مسلمان (تعجب سے) کہیں گے کہ کیا یہ وہی ہیں جو خدا کی سخت سخت قسمیں کھایا کرتے تھے کہ ہم تمہارے ساتھ ہیں ان کےعمل اکارت گئے اور وہ خسارے میں پڑ گئے