ضَحَّى رَسُولُ اللَّهِ صلى الله عليه وسلم بِكَبْشٍ أَقْرَنَ فَحِيلٍ يَمْشِي فِي سَوَادٍ وَيَأْكُلُ فِي سَوَادٍ وَيَنْظُرُ فِي سَوَادٍ .
It was narrated that Abu Sa'eed said: "The Messenger of Allah sacrificed a horned, intact ram, with black feet some black at the stomach and black around its eyes." (Sahih )