Chapter 31: Chapters On Wala' And Gifts
Aishah narrated that the Prophet (ﷺ) visited her in a very happy mood, his face beaming with joy and said: "Don' t you see that the Mujazziz looked just now at Zaid bin Harithah and Usamah bin Zaid, and said: 'These feet belong to each other.'"[Abu 'Eisa said: ] This Hadith is Hasan Sahih.
Jami at-Tirmidhi 2129