Is a Dog’s Leftover Water Pure?

٢ - وَالثَّانِي: نَجَسٌ لا يَجُوزُ اسْتِعْمَالُهُ وَهُوَ مَا شَرِبَ مِنْهُ الْكَلْبُ أَوِ الْخِنْزِيرُ أَوْ شَيْءٌ مِنْ سِبَاعِ الْبَهَائِمِ كَالْفَهْدِ وَالذِّئْبِ.

The second: impure, unlawful to use (najis, lā yajūzu istiʿmāluh) — it is what a dog, a pig, or any beast of prey among land animals such as the leopard and the wolf has drunk from.

Ruling (Ḥukm): The left-over of a dog is of the second category: najis — it is not permitted to use it for wuḍūʾ, ghusl, or removing any other impurity. A vessel a dog has drunk from must be cleaned (in accordance with the well-known rulings on washing vessels licked by a dog) before it can be used again for food, drink, or purification.

Evidence (Dalīl):

— Nūr al-Īḍāḥ wa-Najāt al-Arwāḥ fī al-Fiqh al-Ḥanafī (نور الإيضاح ونجاة الأرواح في الفقه الحنفي), Bāb al-Ṭahārah, Faṣl fī Bayān Aḥkām al-Suʼur, pp. 14–15.