Asim al-Ahwal عاصم الأحول · Chapters On Wala' And Gifts

"that a man from " He said: 'Yes." He said: "Then what are their colors?" He said: "Red." He said: "Is there a gray one among them?" He said: "Yes, there is a grey one among them." He said: "From where does that come?" He said: "Perhaps it is hereditary." He said: "Then in the same way, perhaps it is his heredity." This Hadith is Hasan Sahih.

"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.'" This Hadith is Hasan Sahih.