(41) CHAPTER. Two straps in a sandal; and whoever thinks that it is permissible to use one strap.
Narrated Anas: The sandal of the Prophet had two straps.
Narrated Isaa bin Tahman: Anas bin Malik brought out for us, two sandals having two straps. Thabit Al-Banani said, These were the sandals of the Prophet .