Bismillah Walhamdulillah Was Salaatu Was Salaam ‘ala Rasulillah
Narrated Maimuna (Radi-Allahu ‘anha):
A mouse fell into the butter-fat and died. The Prophet (Sallallahu ‘Alaihi Wa Sallam) was asked about that. He said, “Throw away the mouse and the butter-fat that surrounded it, and eat the rest of the butter-fat (As-Samn).
Bukhari Vol. 7 : No. 446