Sahih Muslim
The Book Pertaining to the Turmoil and Portents of the Last Hour (Kitab Al-Fitan wa Ashrat As-Saah)
Book Number: 041 / Hadith Number: 6935
Abu Huraira reported that Allah's Messenger may peace be upon him) said: The Last Hour would not come until fire emits from the earth of Hijaz which would illuminate the necks of the camels of the Busra.