Sahih Muslim Book 24, Hadith Number 5173.

Chapter : It is not permissible for a man to wear clothes of yellow colour.

‘Abdullah b. ‘Amr b. al-As reported: Allah’s Messenger (may peace be upon him) saw me wearing two clothes dyed in saffron, whereupon he said: These are the clothes (usually worn by) the non-believers, so do not wear them.