It is narrated from Abu Sa'id al-Jabiri that Sayyiduna Ali (may Allah be pleased with him) was asked whether a cat may drink from a vessel. He said: "There is no objection to the su'r (the leftover in a vessel or the water it has drunk from) of a cat." This same narration is also reported as marfu' in the four Sunan and in Sahih Ibn Khuzaymah from Sayyiduna Abu Qatadah (may Allah be pleased with him), that the Messenger of Allah (peace and blessings be upon him) said about the cat: "Indeed, it is not impure; rather it is one of the tawwafin and tawwafat (the male and female household animals that frequently go about) among you." This narration is sahih (authentic).
Hadith Referenceالمطالب العالية بزوائد المسانيد الثمانية / كتاب الطهارة / 20
Hadith Gradingمحدثین:إسناده صحيح
Hadith Takhrij«حکم الحدیث المطالب العالیہ محققاً تنسیق د. سعد بن ناصر بن عبد العزيز الشَّثري- مکتبہ شاملہ :قال ابن حجر: صَحِيحٌ . » «أخرجه الدارقطني فى «سننه» برقم: 220، وأورده ابن حجر فى "المطالب العالية"، 20، وأخرجه ابن أبى شيبة فى «مصنفه» برقم: 338»