Musnad Ahmad 937:1

Wahb ibn Jarir narrated to us, my father narrated to us, he said: I heard al-A’mash narrating from ‘Amr ibn Murrah, from ‘Abdullah ibn al-Harith, from Habib ibn Khammaz, from Abu Dharr, who said: We arrived with the Messenger of Allah, may Allah bless him and grant him peace, and we descended at Dhu al-Hulayfah. Some men hastened to Medina, while the Messenger of Allah, may Allah bless him and grant him peace, spent the night, and we spent the night with him. When morning came, he asked about them, and it was said: "They hastened to Medina." He said: "They hastened to Medina and the women. Verily, they shall leave it in the best state it ever was." Then he said: "I wish I knew when a fire will emerge from Yemen, from Mount al-Waraq, by which the necks of the camels will be illuminated while they are kneeling in Busra, like the light of day."