2:197
ٱلْ حَجُّ أَشْهُرٌ مَّعْلُومَٰتٌ فَ مَن فَرَضَ فِي هِنَّ ٱلْ حَجَّ فَ لَا رَفَثَ وَ لَا فُسُوقَ وَ لَا جِدَالَ فِى ٱلْ حَجِّ وَ مَا تَفْعَلُ وا۟ مِنْ خَيْرٍ يَعْلَمْ هُ ٱللَّهُ وَ تَزَوَّدُ وا۟ فَ إِنَّ خَيْرَ ٱل زَّادِ ٱل تَّقْوَىٰ وَ ٱتَّقُ و نِ يَٰٓ أُو۟لِى ٱلْ أَلْبَٰبِ
Hajj is [during] well-known months, so whoever has made Hajj obligatory upon himself therein [by entering the state of ihram], there is [to be for him] no sexual relations and no disobedience and no disputing during Hajj. And whatever good you do - Allah knows it. And take provisions, but indeed, the best provision is fear of Allah. And fear Me, O you of understanding.