According to sunnah, pilgrims should leave Arafah quietly and peacefully after sunset. The Prophet (peace be upon him) left Arafah very peacefully and quietly, holding the reins of his she camel so tightly that its head touched its back, while he said to the people, “O people, walk calmly; rushing or making haste is not a virtue.” This is reported by Bukhari and Muslim. They also reported that the Prophet (peace be upon him) let his she camel go at normal pace, but when he found ample space in front of him he urged it to go faster.” He did this out of compassion and consideration for the people.
It is desirable for pilgrims to utter talbiyah and make remembrance of Allah as much as possible. The Prophet (peace be upon him) repeated talbiyah right until he threw pebbles at Jamarah Al-‘Aqabah. Ash’ath bin Sulaim reported from his father that he said, “I went with Ibn ‘Umar from Arafah to Muzdalifah. He did not stop making remembrance of Allah and declaring His Oneness until we reached Muzdalifah.” This is reported by Abu Daw’ud.