Sunnah.com reference : Book 7, Hadith 7English translation : Book 7, Hadith 790Arabic reference : Book 7, Hadith 787
Narrated Maimuna (RA), the wife of the Prophet (ﷺ):
A mouse fell into some ghee and died. The Prophet (ﷺ) was asked about it and he replied, "Throw it - and what is surrounding (touching) it - away and eat it (that which remained untouched)."

[Reported by al-Bukhari].
وَعَنْ مَيْمُونَةَ زَوْجِ اَلنَّبِيِّ ‏-صَلَّى اَللَّهُ عَلَيْهِ وَسَلَّمَ, وَرَضِيَ عَنْهَا‏-; { أَنَّ فَأْرَةً وَقَعَتْ فِي سَمْنٍ, فَمَاتَتْ فِيهِ, فَسُئِلَ اَلنَّبِيُّ ‏- صلى الله عليه وسلم ‏-عَنْهَا.‏ فَقَالَ: 
" أَلْقُوهَا وَمَا حَوْلَهَا, وَكُلُوهُ " }  رَوَاهُ اَلْبُخَارِيُّ  1‏ .‏‏1 ‏- صحيح.‏ رواه البخاري ( 5540 )‏.‏