Ibn Sarh reported that the Prophet ﷺ said, "The Hour will not come until you fight a people whose sandals are made of hair, and the Hour will not come until you fight a people with small eyes and flat noses, as if their faces were hammered shields."
حدثنا قتيبة وابن السرح وغيرهما قالوا حدثنا سفيان عن الزهري عن سعيد بن المسيب
قال ابن السرح أن النبي ﷺ قال لا تقوم الساعة حتى تقاتلوا قوما نعالهم الشعر ولا تقوم الساعة حتى تقاتلوا قوما صغار الأعين ذلف الآنف كأن وجوههم المجان المطرقة
Bukhari also narrated it in the Book of Jihad and Expeditions, chapter "Fighting Those Who Wear Sandals of Hair," hadith no. 2929, and Muslim in the Book of Tribulations, chapter "The Hour Will Not Come Until a Man Passes by the Grave of Another Man and Wishes..." etc., hadith no. 2912, from the hadith of Sufyan bin Uyayna, with the same chain.