كَيْفَ يَكُونُ لِلْمُشْرِكِينَ عَهْدٌ عِندَ اللّهِ وَعِندَ رَسُولِهِ إِلاَّ الَّذِينَ عَاهَدتُّمْ عِندَ الْمَسْجِدِ الْحَرَامِ فَمَا اسْتَقَامُواْ لَكُمْ فَاسْتَقِيمُواْ لَهُمْ إِنَّ اللّهَ يُحِبُّ الْمُتَّقِينَ
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سورة التوبة
(9/7) How can there be a covenant with Allah and with His Messenger for the associators? Except those with whom you made a covenant near Mescid-i Haram? So as long as they are true to you (if they fulfill their covenant), be true to them (fulfill your covenant). Surely Allah loves the owners of piety (Takwâ).
Surah At-Tawbah