Usama tripped on the threshold of the door and began to bleed. The Prophet ﷺ started sucking the blood from him and said, "If Usama were a girl, I would have adorned her with jewelry and clothed her until I had married her off."
حدثنا وكيع عن شريك عن العباس بن ذريح عن البهي
أن أسامة عثر بعتبة الباب فدمي قال فجعل النبي ﷺ يمصه ويقول لو كان أسامة جارية لحليتها ولكسوتها حتى أنفقها
No references are available.
Its chain is hasan. Ibn Majah reported it, 1/635, no. 1976.