Mishkat al-Masabih 19 Jihad كتاب الجهاد 89

وَعَن أبي قَتَادَة عَنِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ: «خَيْرُ الْخَيْلِ الْأَدْهَمُ الْأَقْرَحُ الْأَرْثَمُ ثُمَّ الْأَقْرَحُ الْمُحَجَّلُ طُلُقُ الْيَمِينِ فَإِنْ لَمْ يَكُنْ أَدْهَمَ فَكُمَيْتٌ عَلَى هَذِهِ الشِّيَةِ» . رَوَاهُ التِّرْمِذِيُّ وَالدَّارِمِيُّ

Abu Qatada reported the Prophet as saying, “The best type of horse is the black one with a blaze on its face and a white spot on its upper lip* next comes the horse with a blaze on its face and white on the legs, except on a right one. If it is not black, then a dark bay horse with those markings.” * Artham . This may mean either that it has a white spot on its upper lip, or on the point of its nose. Tirmidhi and Darimi transmitted it.