The Book of Zuhd and Softening of Hearts
Ṣaḥīḥ Muslim 7496
فُقِدَتْ أُمَّةٌ مِنْ بَنِي إِسْرَائِيلَ لاَ يُدْرَى مَا فَعَلَتْ وَلاَ أُرَاهَا إِلاَّ الْفَأْرَ أَلاَ تَرَوْنَهَا إِذَا وُضِعَ لَهَا أَلْبَانُ الإِبِلِ لَمْ تَشْرَبْهُ وَإِذَا وُضِعَ لَهَا أَلْبَانُ الشَّاءِ شَرِبَتْهُ
fuqidat ummatun min banī isrāʾīla lā yudrā mā faʿalat walā urāhā illā al-fa-ra alā tarawnahā idhā wuḍiʿa lahā albānu al-ibili lam tashrabhu wa-idhā wuḍiʿa lahā albānu ash-shāʾi sharibathu
Transliteration generated from the Arabic vowel marks
The full narration
Abu Huraira reported that Allah's Messenger (ﷺ) said:A group of Bani Isra'il was lost. I do not know what happened to it, but I think (that it 'underwent a process of metamorphosis) and assumed the shape of rats. Don't you see when the milk of the camel is placed before them, these do not drink and when the milk of goat is placed before them, these do drink. Abu Huraira said: I narrated this very hadith to Ka'b and he said: Did you hear this from Allah's Messenger (ﷺ)? I (Abu Huraira) said: Yes. He said this again and again, and I said: Have I read Torah? This hadith has been transmitted on the authority of Ishaq with a slight variation of wording
Source
Ṣaḥīḥ Muslim · 7496