Surat At-Tawbah - سورة التوبة

إِلَّا الَّذِينَ عَاهَدتُّم مِّنَ الْمُشْرِكِينَ ثُمَّ لَمْ يَنقُصُوكُمْ شَيْئًا وَلَمْ يُظَاهِرُوا عَلَيْكُمْ أَحَدًا فَأَتِمُّوا إِلَيْهِمْ عَهْدَهُمْ إِلَىٰ مُدَّتِهِمْ ۚ إِنَّ اللَّهَ يُحِبُّ الْمُتَّقِينَ

Muhsin Khan: Except those of the Mushrikun with whom you have a treaty, and who have not subsequently failed you in aught, nor have supported anyone against you. So fulfill their treaty to them to the end of their term. Surely Allah loves Al- Mattaqun (the pious - see V.2:2).