Kulayb (may Allah have mercy on him) said: We were on a military expedition, and with us was one of the Companions of the Prophet (peace and blessings be upon him), called Mujashi' (may Allah be pleased with him), from Banu Sulaym. During that time sheep became scarce, so he ordered a crier to announce: Indeed, the Messenger of Allah (peace and blessings be upon him) said: "A jadha'ah (a young animal) suffices for that (sacrifice) for which a thaniyyah suffices."
Hadith Referenceالمعجم الكبير للطبراني / باب الميم / 17895