Sayyiduna Abu Hurairah (may Allah be pleased with him) narrates: In the year of the conquest of Makkah, the people of the Khuza’ah tribe killed a man from the Banu Layth in retaliation for one of their own who had been killed. This was reported to the Prophet (peace and blessings be upon him), so he mounted his ride and delivered a sermon, saying:“Allah Almighty did not allow the elephants to enter Makkah, but He granted His Messenger and the believers authority over it. Be aware! It was not made lawful for anyone before me, and it will not be made lawful for anyone after me. Be aware! It was made lawful for me only for a specific part of the day, and now it is a sanctuary. Its thorns must not be broken, its trees must not be cut, and its fallen items must not be picked up, except by one who announces it. If someone’s relative is killed, he has a choice between two things: either (the killer is killed in retaliation) or the blood money is paid to the heirs of the slain.”(The narrator says:) A man from Yemen came and said,“O Messenger of Allah! Write this down for me.”So the Prophet said,“Write it down for Abu so-and-so.”A man from the Quraysh said,“O Messenger of Allah! Allow us to cut the idhkhir (a type of grass), for we use it in our houses and graves.”The Prophet (peace and blessings be upon him) said,“Idhkhir is allowed.”