The Prophet ﷺ said, "Horses are of three kinds," and he mentioned the rest of the hadith.
حدثنا معاوية بن عمرو حدثنا زائدة حدثنا الركين عن أبي عمرو الشيباني
عن النبي ﷺ قال الخيل ثلاثة فذكر الحديث
No references are available.
Its isnad is sahih, and the anonymity of the companion does not cause harm. Abu Amr Shaybani's name was Saeed bin Iyas. He was a tabii mukhadram whose reliability is agreed upon, and he lived 120 years. This hadith is not from the musnad of Ibn Masud, but rather from the musnad of a man from the Ansar, and it was only mentioned here following the one before it. It appears in Majma al-Zawaid 260, where it says, Ahmad narrated it, and its narrators are the narrators of the sahih.