The Messenger of Allah ﷺ allowed seven Muslims to share a cow as a sacrifice.
حدثنا أسود بن عامر أخبرنا إسرائيل عن الحكم بن عتيبة حدثني المغيرة بن حذف
أن رسول الله ﷺ أشرك بين المسلمين البقرة عن سبعة
Its isnad is hasan because of Israil. As for Mughira bin Hadhf, Ibn Khalfun deemed him trustworthy, and Ibn Main said of him, "well known." The hadith has already appeared at 14359.