The Messenger of Allah ﷺ said, "Name yourselves by my name, but do not take my kunyah as your own."He used to dislike a horse marked with shikal.Hajjaj explained that this means one of its legs is black or white.
حدثنا عبد الرحمن قال حدثنا شعبة وحجاج قال أخبرنا شعبة عن عبد الله بن يزيد قال حجاج من النخع قال سمعت أبا زرعة
أن رسول الله ﷺ قال تسموا باسمي ولا تكنوا بكنيتي وكان يكره الشكال من الخيل قال حجاج يعني إحدى رجليه سواد أو بياض
Its isnad is sahih. It occurred previously at 9856 in its two parts, and the isnad here can be explained as follows, Ahmad relates it from Shubah and Hajjaj, and Shubah relates it from Abdullah bin Yazid, while Hajjaj names him Abdullah bin Yazid Nakhai.