Ammara bin al-Q'aqa' bin Shabrma عمارة بن القعقاع بن شبرمة · The Book of Hajj

"The Messenger of Allah departed (From Arafat) in a tranquil manner, and he enjoined them to be tranquil. He hurried in the valley of Muhassir and told them to stone the Jamrat with (pebbles like date stones or fingertips. (Daif)

I heard Ibn Abbas say: I was one of those whom the Prophet sent ahead amongh the weak ones of his family.