Source text
وَالثَّالِثُ: مَكْرُوهٌ اسْتِعْمَالُهُ مَعَ وُجُودِ غَيْرِهِ، وَهُوَ سُؤْرُ الْهِرَّةِ، وَالدَّجَاجَةِ الْمُخَلَّاةِ، وَسِبَاعِ الطَّيْرِ، وَسَوَاكِنِ الْبُيُوتِ كَالْفَأْرَةِ لَا الْعَقْرَبِ
• This leftover is pure, but using it for purification is disliked when ordinary pure water is available.
• Examples: a domestic cat, a free-roaming chicken, predatory birds, and house-dwelling creatures with flowing blood such as a mouse.
• The text expressly excludes the scorpion: لَا الْعَقْرَبِ.
• If no other suitable water is available, this pure water is used; one does not move to Tayammum merely because of this dislike.