Musannaf Ibn Abi Shayba 16:493

Abu Bakr narrated to us, he said: Waki’ narrated to us, from Hammad bin Zayd, from ‘Asim bin Bahdala, he said: I reached people who used to take this night as a camel (i.e., for travel/worship), and they would wear saffron-dyed garments; among them was Abu Wa’il.