Sunan Abi Dawud Book 36, Hadith 21
The tradition mentioned above has also been transmitted by 'Arfajah through a different chain of narrators to the same effect.
I asked AbulAshhab: Did AbdurRahman ibn Tarafah meet his grandfather Arfajah? He replied: Yes.
The Prophet (ﷺ) got some ornaments presented by Negus as a gift to him. They contained a gold ring with an Abyssinian stone. The Messenger of Allah (ﷺ) turning his attention from it took it by means of a stick or his finger, then called Umamah, daughter of Abul'As and daughter of his daughter Zaynab, and said: Wear it, my dear daughter.