The Book of Pilgrimage (Kitab Al-Hajj)

Muslim :: Book 7 : Hadith 3160

'Asim reported: I asked Anas (Allah be pleased with him) whether Allah's Messenger (may peace be upon him) had declared Medina as sacred. He said: Yes, it is sacred, so its tree is not to be cut; and he who did that let the curse of Allah and that of the angels and of all people be upon him.