أَمْ جَنَايَا بَنِي عَتِيقٍ فَإِنَّا مِنْكُمْ إِنْ غَدَرْتُمْ بُرَآءُ
Translation: Or are the offences of Banū ʿAtīq to be charged to us? If you betray the covenant, we are clear of you.
Janāyā is the plural of jināyah, offences. In ghadartum is a conditional clause, “if you act treacherously”; burāʾ means disassociated or free of liability.
The verse connects the earlier are we responsible? questions with covenant fidelity. The speaker rejects not merely an accusation but the automatic transfer of culpability from a treaty-breaker to his own group.