Musnad Ahmad 25:229

Waki’ narrated to us, Zam’ah ibn Salih narrated to us, from Salamah ibn Wahram, from ‘Ikrimah, from Ibn ‘Abbas, who said: When the Messenger of Allah (peace and blessings of Allah be upon him) passed by the valley of ‘Usfan while performing Hajj, he said: "O Abu Bakr, which valley is this?" He said: "The valley of ‘Usfan." He said: "Hud and Salih passed through it upon red she-camels, their nose-reins made of palm fiber, their lower garments being cloaks (aba’ah), and their upper garments being striped cloths (nimar), reciting the Talbiyah, performing Hajj to the Ancient House."