Signet-Rings (Kitab Al-Khatam)
Dawud :: Book 34 : Hadith 4223
Narrated Aisha, Ummul Mu'minin:
The Prophet (peace_be_upon_him) got some ornaments presented by Negus as a gift to him. They contained a gold ring with an Abyssinian stone. The Apostle of Allah (peace_be_upon_him) 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.