At-Taubah - 9:8

كَيْفَ وَإِن يَظْهَرُوا عَلَيْكُمْ لاَ يَرْقُبُواْ فِيكُمْ إِلاًّ وَلاَ ذِمَّةً يُرْضُونَكُم بِأَفْوَاهِهِمْ وَتَأْبَى قُلُوبُهُمْ وَأَكْثَرُهُمْ فَاسِقُونَ
[9:8]
How (can it be)! while if they prevail against you, they would not pay regard in your case to ties of relationship, nor those of covenant; they please you with their mouths while their hearts do not consent; and most of them are transgressors.
How (can there be such a league), seeing that if they get an advantage over you, they respect not in you the ties either of kinship or of covenant? With (fair words from) their mouths they entice you, but their hearts are averse from you; and most of them are rebellious and wicked.
How (can there be any treaty for the others) when, if they have the upper hand of you, they regard not pact nor honour in respect of you? They satisfy you with their mouths the while their hearts refuse. And most of them are wrongdoers.