It is narrated from Sayyiduna Abdullah bin Salam (may Allah be pleased with him) that he heard the Messenger of Allah (peace and blessings be upon him) saying on the pulpit: "What harm is there for you, if you are able, in setting aside two garments for Friday, apart from your two work garments?"
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 14000