Sayyiduna Jabir bin Abdullah (may Allah be pleased with both of them) narrates: The Noble Prophet (peace and blessings be upon him) established this Sunnah: "A cow and a camel will be sacrificed on behalf of seven people."
Hadith Referenceسنن الدارقطني / كتاب الحج / 2532
Hadith Takhrij«أخرجه الدارقطني فى ((سننه)) برقم: 2532، وأحمد فى ((مسنده)) برقم: 14817»