Muhammad b. Abu Bakr ath-Thaqafi said that he asked Anas b. Malik when they were going in the morning from Mina to ‘Arafa how they used to conduct themselves on that day along with God’s messenger, and he replied, “Those of us who raised their voices in the talbiya did so without any objection being made, and those of us who cried ‘God is most great’ did so without any objection being made."
Bukhari and Muslim.
He reported the Prophet as saying, “If anyone goes round the House not talking except to say, ‘Glory be to God; praise be to God; there is no god but God; God is most great; there is no might and no power except in God’s ten evil deeds will be blotted out from him, ten blessings will be recorded for him, and he will be raised ten degrees. If anyone goes round and talks while doing so, he will wade in mercy like him who wades in water.”( Mirqat 3, 215 says Tibi understands 'talks’ to refer to the phrases mentioned above, and trusts this as a repetition of what has preceded ; but Ibn Hajar understands it as referring to other words and so meriting a lesser reward. Tibi’s explanation is preferred)
Jabir reported God’s messenger as saying, “I have sacrificed here, but the whole of Mina is a place of sacrifice, so sacrifice where you are staying. I have stood here, but all ‘Arafa is a place for standing. I have stood here, but all Jam' (A name for al-Muzdalifa, but it is also said to include the whole area between Mina and Arafa) is a place for standing."
Abu Huraira reported the Prophet as saying, “Seventy angels have been put in charge of it (i.e. the Yamani corner), so if anyone says, ‘O God, I ask Thee for pardon and wellbeing in this world and the next; our Lord, bring us a blessing in this world and a blessing in the next, and guard us from the punishment of hell’, they will say Amen.”