It wasnarrated from Ibn 'Abbas that the Messenger of Allah (ﷺ)said:
"The best of your garments are those which are white, so shroudyour dead in them, and wear them." (RU)
English reference (RU): Vol. 1, Book 6, Hadith 1472 (RU)
Arabic reference (RU): Book 6, Hadith 1539 (RU)