Musnad Ahmad 1416

It was narrated that az-Zubair (رضي الله عنه) said: We came from Liyyah with the Messenger of Allah (ﷺ) and when we reached Sidrah, the Messenger of Allah (ﷺ) stood at one side of Qarnul-Aswad, facing it, then he turned his gaze towards Nakhibah (i.e., a valley) and he waited until all the people had stopped too. Then he said: "Hunting in Wajj and cutting down its plants is haram; it is sacred to Allah.” That was before he came to at-Ta"if and besieged Thaqeef.