Musannaf Ibn Abi Shaybah

Hazrat Masood bin Harash, may Allah have mercy on him, who is the brother of Hazrat Rubee bin Hirash, may Allah have mercy on him, narrates that Hazrat Umar bin Khattab, may Allah be pleased with him, asked the people of the tribe of Banu Abs: "Which horse do you find to be the most enduring in battles?" They replied: "The black and red colored horse."