Sayyiduna Hudhayfah (may Allah be pleased with him) states: The Prophet (peace and blessings be upon him) ordered us to examine carefully the eye and the ear (of the sacrificial animal).
Al-Bazzar recorded it, and Tabarani recorded it in al-Mu'jam al-Awsat; its chain contains a narrator, Muhammad bin Kathir al-Qurashi al-Mula'i, whom Yahya bin Ma'in declared thiqah (trustworthy) and a group declared da'if (weak).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الأضاحي / 5947