It is narrated from Hazrat Samurah (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: Make white clothes obligatory upon yourselves; wear white clothes yourselves and shroud your dead in them, for they are the best of your clothes.
Hadith Referenceمسند احمد / أول مسند البصريين / 20154
Hadith Gradingحکم دارالسلام:حديث صحيح، رواية ميمون بن أبى شبيب عن الصحابة منقطعة