Hadith 2962
Abdur Rahman bin Yazid narrates that Sayyiduna Uthman (may Allah be pleased with him) led four rak‘ahs (units of prayer) in Mina. So Sayyiduna Abdullah bin Mas‘ud (may Allah be pleased with him) said, "I performed two rak‘ahs with the Messenger of Allah (peace and blessings be upon him), and I also performed two rak‘ahs with Abu Bakr and Umar (may Allah be pleased with them both). Then you people differed. I wish that instead of these four rak‘ahs, I would have attained the two accepted rak‘ahs." These are the words of the narration of Salm bin Junadah.
Hadith 2963
It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him), Sayyiduna Abu Bakr, and Umar (may Allah be pleased with them both) performed two rak‘ahs in Mina. Sayyiduna Uthman (may Allah be pleased with him) also performed only two rak‘ahs during the early years of his caliphate.