Musannaf Ibn Abi Shaybah

It is narrated from Hazrat Asma bint Yazid bin Sakan that when the funeral of Hazrat Sa'd was taken out, his mother cried out. The Messenger of Allah, peace and blessings be upon him, said to the mother of Sa'd: "Will your tears not stop and your grief not end? Whereas your son is the first person at whom Allah Almighty smiled, and because of him the Throne shook."