Yusuf Ali
They swear their strongest oaths by Allah, that if a (special) sign came to them, by it they would believe. Say: "Certainly (all) signs are in the power of Allah: but what will make you (Muslims) realise that (even) if (special) signs came, they will not believe."?

Sahih International
And they swear by Allah their strongest oaths that if a sign came to them, they would surely believe in it. Say, "The signs are only with Allah." And what will make you perceive that even if a sign came, they would not believe.

Shakir
And they swear by Allah with the strongest of their oaths, that if a sign came to them they would most certainly believe in it. Say: Signs are only with Allah; and what should make you know that when it comes they will not believe?

Pickthall
And they swear a solemn oath by Allah that if there come unto them a portent they will believe therein. Say; Portents are with Allah and (so is) that which telleth you that if such came unto them they would not believe.

محمد جالندھری
اور یہ لوگ خدا کی سخت سخت قسمیں کھاتے ہیں کہ اگر ان کے پاس کوئی نشانی آئے تو وہ اس پر ضروری ایمان لے آئیں۔ کہہ دو کہ نشانیاں تو سب خدا ہی کے پاس ہیں۔ اور (مومنو!) تمہیں کیا معلوم ہے (یہ تو ایسے بدبخت ہیں کہ ان کے پاس) نشانیاں آ بھی جائیں تب بھی ایمان نہ لائیں