As soon as the Prophet (ﷺ) departed from `Arafat, he went towards the mountain pass, and there he answered the call of) the prayer is ahead of you (i.e. at asked, "O Allah's Messenger (ﷺ)! Will you offer the prayer here?" He replied, "(The place of) the prayer is ahead of you (i.e. at Al-Muzdalifa)."
Sahih al-Bukhari Book 25, Hadith 148