Musannaf Ibn Abi Shayba 36:387

Al-Hasan ibn Musa narrated to us, he said: Shayban narrated to us, from Yahya, he said: Abu Salamah informed me that Abu Hurayrah informed him that Khuza'ah killed a man from Banu Layth in the year of the conquest of Makkah for a person of theirs whom they had killed. The Messenger of Allah (ﷺ) was informed of that, so he mounted his riding beast and delivered a sermon. He said: "Indeed, Allah restrained the elephant from Makkah and gave His Messenger and the believers authority over it. Behold, it was made lawful for me for an hour of the day. Behold, it is, at this hour of mine, sacred. Its thorns must not be cut, its trees must not be felled, and its lost property must not be picked up except by one who announces it. Whoever has a person killed, he has the choice of two options: either he kills, or he accepts blood money from the family of the slain." He said: Then a man came, who was called Abu Shah, and said: "Write it down for me, O Messenger of Allah." He said: "Write it down for Abu Shah." A man from Quraysh said: "Except for the *idhkhir* (lemon grass), O Messenger of Allah, for we use it in our houses and our graves." The Messenger of Allah (ﷺ) said: "Except for the *idhkhir*."