Quran 6, Al-An'am (Cattle) ⓘ
6:109And 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.
وَأَقْسَمُوا بِاللَّهِ جَهْدَ أَيْمَانِهِمْ لَئِنْ جَاءَتْهُمْ آيَةٌ لَيُؤْمِنُنَّ بِهَا قُلْ إِنَّمَا الْآيَاتُ عِنْدَ اللَّهِ وَمَا يُشْعِرُكُمْ أَنَّهَا إِذَا جَاءَتْ لَا يُؤْمِنُونَ
6:103–109