وَأَقْسَمُوا۟ بِٱللَّهِ جَهْدَ أَيْمَـٰنِهِمْ لَئِن جَآءَتْهُمْ ءَايَةٌ لَّيُؤْمِنُنَّ بِهَا ۚ قُلْ إِنَّمَا ٱلْـَٔايَـٰتُ عِندَ ٱللَّهِ ۖ وَمَا يُشْعِرُكُمْ أَنَّهَآ إِذَا جَآءَتْ لَا يُؤْمِنُونَ
wa-aqsamū bil-lahi jahda aymānihim la-in jāathum āyatun layu'minunna bihā qul innamā l-āyātu ʿinda l-lahi wamā yush'ʿirukum annahā idhā jāat lā yu'minūna
And they swear by Allāh their strongest oaths that if a sign came to them, they would surely believe in it. Say, "The signs are only with [i.e., from] Allāh." And what will make you perceive that even if it [i.e., a sign] came, they would not believe.
— Saheeh International
They swear by God with their most solemn oaths that if a miraculous sign came to them they would believe in it. Say [Prophet], ‘Signs are in the power of God alone.’ What will make you [believers] realize that even if a sign came to them they still would not believe?
— M. A. S. Abdel Haleem
And they swear their strongest oaths by Allâh, that if there came to them a sign, they would surely believe therein. Say: "Signs are but with Allâh and what will make you (Muslims) perceive that (even) if it (the sign) came, they will not believe?"
— Muhammad Muhsin Khan & Muhammad Taqi-ud-Din al-Hilali