Yahya related to me from Malik from Abu'z-Zinad from al-Araj fromAbu Hurayra that the Messenger of Allah, may Allah bless him and granthim peace, said, "Do not wear one sandal. Wear both of them or go withboth feet bare."
USC-MSA web (English) reference: Book 48, Hadith 14
Arabic reference: Book 48, Hadith 1668