It is narrated from Umm al-Mu’minin Sayyida Maymunah (may Allah be pleased with her) that the Messenger of Allah (peace and blessings be upon him) was asked about a mouse that had fallen into ghee. He said:“Remove it and throw away the ghee around it, and (the remaining ghee) eat it.”

Muhammad bin Yusuf narrates from Ibn Uyaynah with the same chain.

Ibn Abbas (may Allah be pleased with them) said: The Messenger of Allah (peace and blessings be upon him) was asked: If a mouse falls into ghee and dies (what should be done?), he said: "Remove it and the ghee around it and throw them away."

With this chain also, a narration similar to the previous one is reported from Sayyida Maymunah (may Allah be pleased with her). Imam Darimi (may Allah have mercy on him) said: If the ghee is melted, then all of it should be thrown away.