Source text
وَطَاهِرٌ مُطَهِّرٌ مَكْرُوهٌ: وَهُوَ مَا شَرِبَتْ مِنْهُ الْهِرَّةُ وَنَحْوَهَا...
• Category 1: Ordinary absolute water is pure and purifying without dislike.
• Category 2: A small amount of water from which a domestic cat—or certain similar animals mentioned by the commentary—has drunk remains pure and purifying, but its use is mildly disliked when other suitable water is available.
• The commentary includes examples such as a free-roaming chicken, birds of prey, a snake, and a mouse.
• If no other suitable water is available, this water is used; one does not leave it and move to Tayammum.