Musannaf Ibn Abi Shaybah 8394 — Those who used to shorten the prayer

Abd al-Rahman bin Yazid said: Sayyiduna Uthman (may Allah be pleased with him) prayed four rak'ahs at Mina, and Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) said: I prayed two rak'ahs at Mina with the Prophet (peace and blessings be upon him). I prayed two rak'ahs at Mina with Sayyiduna Abu Bakr (may Allah be pleased with him). I prayed two rak'ahs at Mina with Sayyiduna Umar (may Allah be pleased with him). Now your paths have diverged. My wish is that of the four, two rak'ahs of mine be accepted.