Suwayd narrated that Anas said,
“The most beloved colour to the Messenger of Allaah (sallallaahu ‘alayhe wa sallam) was GREEN.”
(Musnad Al-Bazzaar)
Suwayd is dha’eef, but the hadeeth has mutaaba’aat collected by Ibn Jurayj, Al-Bayhaqee, and At-Tabaraanee. Al-Albaanee gathered them and concluded that the hadeeth is hasan by these numerous routes in the Silsilah #2054.
http://salafitalk.net/st/viewmessages.cfm?Forum=6&Topic=148
