Hadith.2977 - Muhammad ibn Muslim asked Abu Ja'far عليه السلام:
"Did the Messenger of Allah سبحانه وتعالى (peace be upon him and his family) pray the Zuhr prayer in Mina on the Day of Tarwiyah?"
Imam عليه السلام said: "Yes, and also the Fajr prayer on the Day of Arafah."