Sunan Ibn Majah Book 25, Hadith 128
“At what hour did the Prophet
(ﷺ) go out on this day?” He said: “When that time comes, we
will go out.” So Hajjah sent a man to watch for the time when they
went out.
When Ibn ‘Umar wanted to set out, he said: “Has the sun passed the zenith?” They said: “It has not passed the zenith yet.” So he sat down. Then he said: “Has the sun passed the zenith?” They said: “It has not passed the zenith yet.” So he sat down. Then he said: “Has the sun passed the zenith?” They said: “Yes.” When they said that it had passed the zenith, he set out.
“We went in the morning on this day with the Messenger of Allah (ﷺ) from Mina to ‘Arafat. Some of us recited the Takbir (Allahu Akbar) and some of us recited the Tahlil (La ilaha illallah), and neither criticized the other.”
“The Messenger of Allah (ﷺ) stopped at ‘Arafat and said: ‘This is the place of standing, and all of ‘Arafat is a place of standing.’”