It is narrated from Sayyiduna Abu Hurairah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Medina will be abandoned despite being in a good state, until a dog will enter the (mosque) and urinate on some of its pillars or on the pulpit." The people asked: "O Messenger of Allah! For whom will the fruits be at that time?" He (peace and blessings be upon him) said: "They will be for the birds and wild animals that roam in search of food."