They swore by God, solemnly, that if a miracle came to them, they would surely believe. Say, “Miracles come only from God.” For all you know, if a miracle did come to them, they would continue to disbelieve.
وَأَقسَموا بِاللَّهِ جَهدَ أَيمٰنِهِم لَئِن جاءَتهُم ءايَةٌ لَيُؤمِنُنَّ بِها قُل إِنَّمَا الـٔايٰتُ عِندَ اللَّهِ وَما يُشعِرُكُم أَنَّها إِذا جاءَت لا يُؤمِنونَ
wa aqsamoo billaahi jahda aimaanihim la’in jaaa’at hum Aayatul la yu’minunna bihaa; qul innamal Aayaatu ‘indal laahi wa maa yush’irukum annahaaa izaa jaaa’at laa yu’minoon