Musannaf Ibn Abi Shaybah

Hazrat Abdullah bin Bakr narrates that I was at a funeral and Hazrat Ziyad bin Jubair bin Hiyyah was also with us. When the grave was leveled, water was poured over it. A person came and started touching the grave and fixing it. Hazrat Ziyad said, "After pouring water on the grave, it is disliked to touch it with hands."