إِنَّ عِدَّةَ ٱلشُّهُورِ عِندَ ٱللَّهِ ٱثْنَا عَشَرَ شَهْرًا فِى كِتَـٰبِ ٱللَّهِ يَوْمَ خَلَقَ ٱلسَّمَـٰوَٰتِ وَٱلْأَرْضَ مِنْهَآ أَرْبَعَةٌ حُرُمٌ ۚ ذَٰلِكَ ٱلدِّينُ ٱلْقَيِّمُ ۚ فَلَا تَظْلِمُوا۟ فِيهِنَّ أَنفُسَكُمْ ۚ وَقَـٰتِلُوا۟ ٱلْمُشْرِكِينَ كَآفَّةً كَمَا يُقَـٰتِلُونَكُمْ كَآفَّةً ۚ وَٱعْلَمُوٓا۟ أَنَّ ٱللَّهَ مَعَ ٱلْمُتَّقِينَ ٣٦
Indeed, the number of months with Allāh is twelve [lunar] months in the register of Allāh [from] the day He created the heavens and the earth; of these, four are sacred.[471] That is the correct religion [i.e., way], so do not wrong yourselves during them.[472] And fight against the disbelievers collectively as they fight against you collectively. And know that Allāh is with the righteous [who fear Him].
Translator's notes
[471] See footnote to 9:5. [472] i.e., do not violate the sacred months or commit aggression therein.
Saheeh International · QuranEnc v1.1.2
Another translation: Al-Hilali & Muhsin Khan · QuranEnc v1.1.2
36. Verily, the number of months with Allâh is twelve months (in a year), so was it ordained by Allâh on the Day when He created the heavens and the earth; of them four are Sacred (i.e. the 1st, the 7th, the 11th and the 12th months of the Islâmic calendar). That is the right religion, so wrong not yourselves therein, and fight against the Mushrikûn (polytheists, pagans, idolaters, disbelievers in the Oneness of Allâh) collectively[11] as they fight against you collectively. But know that Allâh is with those who are Al-Muttaqûn (the pious - See V.2:2).
[11] (V.9:36) See the footnotes of (V.2:193) and (V.8:73).