وَحَدَّثَنِي مَالِكٌ، عَنِ ابْنِ شِهَابٍ، عَنْ عُبَيْدِ اللَّهِ بْنِ عَبْدِ اللَّهِ بْنِ عُتْبَةَ بْنِ مَسْعُودٍ، عَنْ عَبْدِ اللَّهِ بْنِ عَبَّاسٍ، عَنْ مَيْمُونَةَ، زَوْجِ النَّبِيِّ صلى الله عليه وسلم أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم سُئِلَ عَنِ الْفَأْرَةِ تَقَعُ فِي السَّمْنِ فَقَالَ ‏"‏ انْزِعُوهَا وَمَا حَوْلَهَا فَاطْرَحُوهُ ‏"‏ ‏.‏

Malik related to me from Ibn Shihab from Ubaydullah ibn Abdullahibn Utba ibn Masud from Abdullah ibn Abbas from Maimuna, the wife ofthe Prophet, may Allah bless him and grant him peace, that theMessenger of Allah, may Allah bless him and grant him peace, was askedabout a mouse falling into clarified butter. He said, "Remove it andthrow away what is around it " Translation Not Available

Book Ref: Muwatta Imam Malik Book 54 Hadith 1785
Web Ref:  Muwatta Imam Malik Book 54 Hadith 20