Musnad Abu Ya'la al-Mawsili 111:115

Zuhayr ibn Harb narrated to us, Muhammad ibn Abdullah al-Asadi narrated to us, Sufyan narrated to us, from Abdullah ibn Uthman ibn Khuthaym, from Sa'id ibn Jubayr, from Ibn Abbas, who said: The Messenger of Allah (may Allah bless him and grant him peace) said: "The best of your kohl is antimony (ithmid) at the time of sleep; it makes the hair grow and clears the vision. And the best of your garments is white; wear them and shroud your dead in them."