What was the prayer Prophet Muhammad (saw) offered at Mina with Abu Bakr and `Umar?
 Narrated `Abdullah bin `Umar:                     I offered the prayer with the Prophet, Abu Bakr and `Umar at Mina and it was of two rak`at. `Uthman in the early days of his caliphate did the same, but later on he started praying the full prayer.