9:5
فَإِذَا ٱنسَلَخَ ٱلْأَشْهُرُ ٱلْحُرُمُ فَٱقْتُلُوا۟ ٱلْمُشْرِكِينَ حَيْثُ وَجَدتُّمُوهُمْ وَخُذُوهُمْ وَٱحْصُرُوهُمْ وَٱقْعُدُوا۟ لَهُمْ كُلَّ مَرْصَدٍ ۚ فَإِن تَابُوا۟ وَأَقَامُوا۟ ٱلصَّلَوٰةَ وَءَاتَوُا۟ ٱلزَّكَوٰةَ فَخَلُّوا۟ سَبِيلَهُمْ ۚ إِنَّ ٱللَّهَ غَفُورٌ رَّحِيمٌ
And when the sacred months have passed, then kill the polytheists wherever you find them and capture them and besiege them and sit in wait for them at every place of ambush. But if they should repent, establish prayer, and give zakah, let them [go] on their way. Indeed, Allah is Forgiving and Merciful.
Context in Surah At-Tawbah
Nearby ayahs help place verse 9:5 in sequence and meaning.
وَأَذَٰنٌ مِّنَ ٱللَّهِ وَرَسُولِهِۦٓ إِلَى ٱلنَّاسِ يَوْمَ ٱلْحَجِّ ٱلْأَكْبَرِ أَنَّ ٱللَّهَ بَرِىٓءٌ مِّنَ ٱلْمُشْرِكِينَ ۙ وَرَسُولُهُۥ ۚ فَإِن تُبْتُمْ فَهُوَ خَيْرٌ لَّكُمْ ۖ وَإِن تَوَلَّيْتُمْ فَٱعْلَمُوٓا۟ أَنَّكُمْ غَيْرُ مُعْجِزِى ٱللَّهِ ۗ وَبَشِّرِ ٱلَّذِينَ كَفَرُوا۟ بِعَذَابٍ أَلِيمٍ
And [it is] an announcement from Allah and His Messenger to the people on the day of the greater pilgrimage that Allah is disassociated from the disbelievers, and [so is] His Messenger. So if you repent, that is best for you; but if you turn away - then know that you will not cause failure to Allah. And give tidings to those who disbelieve of a painful punishment.
إِلَّا ٱلَّذِينَ عَـٰهَدتُّم مِّنَ ٱلْمُشْرِكِينَ ثُمَّ لَمْ يَنقُصُوكُمْ شَيْـًٔا وَلَمْ يُظَـٰهِرُوا۟ عَلَيْكُمْ أَحَدًا فَأَتِمُّوٓا۟ إِلَيْهِمْ عَهْدَهُمْ إِلَىٰ مُدَّتِهِمْ ۚ إِنَّ ٱللَّهَ يُحِبُّ ٱلْمُتَّقِينَ
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].
وَإِنْ أَحَدٌ مِّنَ ٱلْمُشْرِكِينَ ٱسْتَجَارَكَ فَأَجِرْهُ حَتَّىٰ يَسْمَعَ كَلَـٰمَ ٱللَّهِ ثُمَّ أَبْلِغْهُ مَأْمَنَهُۥ ۚ ذَٰلِكَ بِأَنَّهُمْ قَوْمٌ لَّا يَعْلَمُونَ
And if any one of the polytheists seeks your protection, then grant him protection so that he may hear the words of Allah. Then deliver him to his place of safety. That is because they are a people who do not know.
كَيْفَ يَكُونُ لِلْمُشْرِكِينَ عَهْدٌ عِندَ ٱللَّهِ وَعِندَ رَسُولِهِۦٓ إِلَّا ٱلَّذِينَ عَـٰهَدتُّمْ عِندَ ٱلْمَسْجِدِ ٱلْحَرَامِ ۖ فَمَا ٱسْتَقَـٰمُوا۟ لَكُمْ فَٱسْتَقِيمُوا۟ لَهُمْ ۚ إِنَّ ٱللَّهَ يُحِبُّ ٱلْمُتَّقِينَ
How can there be for the polytheists a treaty in the sight of Allah and with His Messenger, except for those with whom you made a treaty at al-Masjid al-Haram? So as long as they are upright toward you, be upright toward them. Indeed, Allah loves the righteous [who fear Him].