Sayyiduna Abu Hurayrah (may Allah be pleased with him) states: We were sitting with the Prophet (peace and blessings be upon him) when a man came to him. He brought a fat young goat, and he brought a young sheep that was weak and lean. He said: "O Messenger of Allah! This is a young sheep that is weak and lean, and this is a young goat that is fat and healthy, and it is the better of the two. Shall I sacrifice it?" The Prophet (peace and blessings be upon him) said: "Sacrifice it, for what is for Allah Almighty should be the best."
Abu Ya'la recorded it as a narration of Hanash al-Abdi; I did not find anyone who has given his biography.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الأضاحي / 5956