Hazrat Mahdi (pbuh) and his students will wear beautiful clothes

Imam Ja’far Sadiq (a.s.) said:  “Then the sky would rain golden locusts – just as the Almighty Allah rained them on Prophet Ayyub (a.s.) in Bani Israel - and on his (Hazrat Mahdi's) companions treasures of the earth from gold and jewels and ... he would distribute it." 

(The Promised Mahdi, Allamah Muhammad Baqir Al-Majlisi, English Translation of Biharul Anwar, Volume 13 (Old Edition)/ Volum 51-52-53 (New Edition), Kitabul Gaibah-Book of Occultation, Imam Mahdi(a.t.f.s)- The Twelfth Imam of the Twelver Shia, Part II, Translator; Sayyid Athar Husain S.H. Rivzi)