Volume 2 · Book 26 · Hadith 618
Narrated Anas bin Malik: The Prophet offered four Rakat in Medina and then two Rakat at DhulI lulaifa and then passed the night at DhulHulaifa till it was morning and when he mounted his Mount and it stood up, he started to recite Talbiya.
— Sahih Bukhari, Volume 2, Book 26: Pilgrimmage (Hajj), Hadith #618