Abu Dawud Book 36, Hadith Number 5126.
Chapter : Not known.
Narated By Umar ibn as-Sa’ib : One day when the Apostle of Allah (PBUH) was sitting, his foster-father came forward. He spread out of a part of his garment and he sit on it. Then his mother came forward to him and he spread out the other side of his garment and she sat on it. Again, his foster-brother came forward. The Apostle of Allah (PBUH) stood for him and seated him before himself.