Quran 5:53 Al-Ma'idah, ayah 53 of 120

وَيَقُولُ ٱلَّذِينَ ءَامَنُوٓا۟ أَهَـٰٓؤُلَآءِ ٱلَّذِينَ أَقْسَمُوا۟ بِٱللَّهِ جَهْدَ أَيْمَـٰنِهِمْ ۙ إِنَّهُمْ لَمَعَكُمْ ۚ حَبِطَتْ أَعْمَـٰلُهُمْ فَأَصْبَحُوا۟ خَـٰسِرِينَ ۝٥٣

5:53 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.