Maliks Muwatta Book 48, Hadith Number 3.
Section : Wearing Clothes for Beautification.
Yahya related to me from Malik from Ayyub ibn Abi Tamim that Ibn Sirin said, ”Umar ibn al-Khattab said, ‘Allah has been generous to you, so be generous to yourselves. Let a man wear a combination of his garments.'”