Abdullah bin Abbas reported,

The Messenger of Allah ﷺ said on the day of the conquest of Mecca, "This city is sacred. Allah has made it sacred. Killing was never permitted in it for anyone before me, and it was made permissible for me only for an hour of the day. It is sacred by Allah's sanctity until the Day of Resurrection. Its game is not to be startled, its thorny shrubs are not to be cut, its lost property is not to be picked up except by one who will announce it, and its fresh grass is not to be uprooted."Abbas said, "Messenger of Allah, except for idhkhir grass, for it is used in their houses and by their blacksmiths."He said, "Except for idhkhir. There is no migration after the conquest, but rather jihad and intention, and when you are called to march out, then march out."

حدثنا يحيى بن آدم حدثنا مفضل عن منصور عن مجاهد عن طاوس

عن ابن عباس قال

قال رسول الله ﷺ يوم فتح مكة إن هذا البلد حرام حرمه الله لم يحل فيه القتل لأحد قبلي وأحل لي ساعة فهو حرام بحرمة الله إلى يوم القيامة لا ينفر صيده ولا يعضد شوكه ولا يلتقط لقطته إلا من عرفها ولا يختلى خلاه فقال العباس يا رسول الله إلا الإذخر فإنه لبيوتهم ولقينهم فقال إلا الإذخر ولا هجرة ولكن جهاد ونية وإذا استنفرتم فانفروا