حَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ اللَّهِ بْنِ نُمَيْرٍ، حَدَّثَنَا يُونُسُ بْنُ بُكَيْرٍ، حَدَّثَنَا مُحَمَّدُ بْنُ إِسْحَاقَ، حَدَّثَنَا أَبَانُ بْنُ صَالِحٍ، عَنِ الْحَسَنِ بْنِ مُسْلِمِ بْنِ يَنَّاقٍ، عَنْ صَفِيَّةَ بِنْتِ شَيْبَةَ، قَالَتْ سَمِعْتُ النَّبِيَّ ـ صلى الله عليه وسلم ـ يَخْطُبُ عَامَ الْفَتْحِ فَقَالَ ‏"‏ يَا أَيُّهَا النَّاسُ إِنَّ اللَّهَ حَرَّمَ مَكَّةَ يَوْمَ خَلَقَ السَّمَوَاتِ وَالأَرْضَ فَهِيَ حَرَامٌ إِلَى يَوْمِ الْقِيَامَةِ لاَ يُعْضَدُ شَجَرُهَا وَلاَ يُنَفَّرُ صَيْدُهَا وَلاَ يَأْخُذُ لُقَطَتَهَا إِلاَّ مُنْشِدٌ ‏"‏ ‏.‏ فَقَالَ الْعَبَّاسُ إِلاَّ الإِذْخِرَ فَإِنَّهُ لِلْبُيُوتِ وَالْقُبُورِ ‏.‏ فَقَالَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ ‏"‏ إِلاَّ الإِذْخِرَ ‏"‏ ‏.‏

It wasnarrated that Safiyyah bint Shaibah said: “I heard the Prophet(PBUH) delivering a sermon in the Year of the Conquest (of Makkah),and he said: ‘O people, Allah made Makkah sacred the day He createdthe heavens and the earth, and it is sacred until the Day ofResurrection. Its trees are not to be cut, its game is not to bedisturbed, and its lost property is not to be taken except by one whowill announce it.’‘Abbas said: ‘Except for Idhkhir (a kind of fragrant grass), for it is (used) for houses and graves.’ The messenger of Allah (PBUH) said: ‘Except for Idhkhir.’” Translation Not Available

Book Ref: Sunan Ibn Majah Book 25 Hadith 3109
Web Ref:  Sunan Ibn Majah Vol 4 Book 25 Hadith 3109