The Messenger of Allah ﷺ sacrificed two rams that were fat, large, white with black markings, horned, and castrated.
حدثنا وكيع حدثنا سفيان عن عبد الله بن محمد بن عقيل عن أبي سلمة
أن رسول الله ﷺ ضحى بكبشين سمينين عظيمين أملحين أقرنين موجأين
Its isnad is hasan due to Abdullah bin Muhammad bin Aqeel, and the hadith has already appeared at 21610, 22750.