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.”
Hadith Referenceسنن دارمي / من كتاب الاطعمة / 2120
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."
Hadith Referenceسنن دارمي / من كتاب الاطعمة / 2122
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.
Hadith Referenceسنن دارمي / من كتاب الاطعمة / 2123