Al-Baqarah · 2:197

197. The time of the Hajj is the well-known months, starting with the month of Shawwāl and ending on the 10th of Dhū Al-Ḥijjah. Sexual relations and things that lead to it are prohibited for any person who decides to perform the Hajj in these months once he enters the state of iḥrām. In addition, the prohibition of going against Allah by committing sins becomes even more emphasised at this time due to the sacredness of the time and place. The pilgrim may not quarrel with anyone: causing them to become angry and leading to a fight. If you do any good, Allah knows and will reward you for it. To perform the Hajj, take an adequate amount of food and drink, but remember that the best provision is being always mindful of Allah. O people of sound mind, fear Allah by fulfilling His instructions and avoiding His prohibitions.