اِلَّا الَّذِيْنَ عَاهَدْتُّمْ مِّنَ الْمُشْرِكِيْنَ ثُمَّ لَمْ يَنْقُصُوْكُمْ شَيْـًٔا وَّلَمْ يُظَاهِرُوْا عَلَيْكُمْ اَحَدًا فَاَتِمُّوْٓا اِلَيْهِمْ عَهْدَهُمْ اِلٰى مُدَّتِهِمْۗ اِنَّ اللّٰهَ يُحِبُّ الْمُتَّقِيْنَ ( التوبة: ٤ )
Illal lazeena 'aahattum minal mushrikeena summa lam yanqusookum shai'anw-wa lam yuzaahiroo 'alaikum ahadan fa atimmooo ilaihim 'ahdahum ilaa muddatihim; innal laaha yuhibbul muttaqeen (at-Tawbah 9:4)
Sahih International:
Excepted are those with whom you made a treaty among the polytheists and then they have not been deficient toward you in anything or supported anyone against you; so complete for them their treaty until their term [has ended]. Indeed, Allah loves the righteous [who fear Him]. (At-Tawbah [9] : 4)
1 Mufti Taqi Usmani
Except those of the Mushriks with whom you have a treaty, and they were not deficient (in fulfilling the treaty) with you, and did not back up any one against you. So fulfill the treaty with them up to their term. Surely, Allah loves the God-fearing.