Shama-il Tirmidhi
Shama-il Tirmidhi Chapter 010, Hadith Number 005 (075).
Hadith Section/Book: Shama-il Tirmidhi Chapter 10. The Shoes Of Rasoolullah
Abu hurayrah radiallahu anhu relates that the shoes of Rasululah Sayyidina Rasulullah sallallahu alaihe wasallam had two straps.