Musnad Ahmad 490:4

Waki’ narrated to us, from ‘Ali ibn Salih, from Iyad ibn Laqit, from Abu Rimtha al-Tamimi, who said: "I was with my father, and I came to the Prophet, may Allah bless him and grant him peace, and we found him sitting in the shade of the Kaaba, and upon him were two green garments."