Abdullah bin Abbas reported,

The Prophet ﷺ said, "Allah has made Mecca sacred. It was not lawful for anyone before me, nor will it be lawful for anyone after me, and it was made lawful for me only for an hour of one day. Its grass is not to be cut, its trees are not to be uprooted, its game is not to be disturbed, and its lost property is not to be picked up except by one who will announce it publicly."Abbas said, "Messenger of Allah, except for idhkhir grass, for it is used by our goldsmiths and for our graves."He replied, "Except for idhkhir."

Azami 3812

Sahih

عن ابن عباس

أن النبي ﷺ قال: إن الله حرم مكة، فلم تجل لأحد قبلي، ولا تحل لأحد بعدي، وإنما أحلت لي ساعة من نهار، لا يختلى خلاها، ولا يعضد شجرها، ولا ينفر صيدها، ولا تلتقط لقطتها إلا لمعرف فقال العباس: يا رسول الله! إلا الإذخر لصاغتنا وقبورنا، فقال: إلا الإذخر.

الأعظمي 3812صحيح
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Funerals
Chapter
Graves
Section
Placing idhkhir grass in the grave and spreading it therein
Numbering
Jami al-Kamil 3812 (2nd edition)
Azami 3812