Surat Tawbah (12-13)

{وَإِن نَّكَثُواْ أَيْمَانَهُم مِّن بَعْدِ عَهْدِهِمْ وَطَعَنُواْ فِي دِينِكُمْ فَقَاتِلُواْ أَئِمَّةَ الْكُفْرِ إِنَّهُمْ لاَ أَيْمَانَ لَهُمْ لَعَلَّهُمْ يَنتَهُونَ} [التوبة : 12]

12- If they break their covenant after signing it and insult your religion, then fight the leaders of polytheism and disbelief because they cannot be trusted for a covenant and cannot keep a promise so that they may cease from insulting your religion and stop their disbelief and aberration.

{أَلاَ تُقَاتِلُونَ قَوْماً نَّكَثُواْ أَيْمَانَهُمْ وَهَمُّواْ بِإِخْرَاجِ الرَّسُولِ وَهُم بَدَؤُوكُمْ أَوَّلَ مَرَّةٍ أَتَخْشَوْنَهُمْ فَاللّهُ أَحَقُّ أَن تَخْشَوْهُ إِن كُنتُم مُّؤُمِنِينَ} [التوبة : 13]

13- Will you not fight the polytheists who betrayed their covenant that was held in Al Hudaybiyah treaty, gathered in Dar An-Nadwah, and tried to bring the Prophet (peace be upon him) out of Makkah and Allah caused him to migrate?! The polytheists were the ones who started enmity while the Prophet (peace be upon him) was calling them in good manner and setting the proof against them with the book of Allah and challenge. The polytheists were the ones who fought you in the Battle of Badr and after they had known the safety of the caravan, they said: We shall not leave until we eradicate Muhammad and his people.

Will you leave their fight out of fear that you might get hurt? Do not fear them, for Allah is more worthy to be feared because of His Power and Punishment if His Commands are disobeyed. So, fight your disbelieving enemies if you are truly believers because benefit and harm are all in His Hands alone, and people must only fear Him.