Sahih Muslim Book - 53, Hadith - 7497

وَحَدَّثَنِى أَبُو كُرَيْبٍ مُحَمَّدُ بْنُ الْعَلاَءِ حَدَّثَنَا أَبُو أُسَامَةَ عَنْ هِشَامٍ عَنْ مُحَمَّدٍ عَنْ أَبِى هُرَيْرَةَ قَالَ « الْفَأْرَةُ مَسْخٌ وَآيَةُ ذَلِكَ أَنَّهُ يُوضَعُ بَيْنَ يَدَيْهَا لَبَنُ الْغَنَمِ فَتَشْرَبُهُ وَيُوضَعُ بَيْنَ يَدَيْهَا لَبَنُ الإِبِلِ فَلاَ تَذُوقُهُ ». فَقَالَ لَهُ كَعْبٌ أَسَمِعْتَ هَذَا مِنْ رَسُولِ اللَّهِ -صلى الله عليه وسلم- قَالَ أَفَأُنْزِلَتْ عَلَىَّ التَّوْرَاةُ.

It was narrated that Abu Hurairah said: "Mice are a transformed race, and the sign of that is that when sheep's milk is put down for them they drink it, and when camel's milk is put down for them they do not even taste it.'' Ka'b said to him: "Did you hear this from the Messenger of Allah (s.a.w)" He said: "Was the Torah revealed to me?"