It is narrated from Sayyiduna Abdullah bin Qurt (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "The greatest day in the sight of Allah Almighty is the Day of Sacrifice (10 Dhu al-Hijjah), then after it the Day of Settling (11 Dhu al-Hijjah)." And five or six camels were presented to the Prophet (peace and blessings be upon him), and they began drawing close to him, (each eager to see) with which one he (peace and blessings be upon him) would begin. Then, when they had fallen on their sides, he (peace and blessings be upon him) said a brief word which I did not understand. I asked the person closest to him, and he told me that he (peace and blessings be upon him) had said: "Whoever wishes may cut off (some of its meat)." This hadith has a sahih (authentic) chain, but the two Shaykhs (Bukhari and Muslim) did not record it.