Chapter on Water and Its Rules, and What is Permissible and Impermissible for Purification

And with this chain of narration, from Muhammad ibn Ya'qub, from Ahmad ibn Idris and Muhammad ibn Yahya, both from Muhammad ibn Ahmad, from Ahmad ibn al-Hasan ibn Ali, from Amr ibn Sa'id, from Musaddiq ibn Sadaqah, from Ammar ibn Musa, from Abu Abdullah عليه السلام, who said: Imam عليه السلام was asked about water from which a pigeon drinks. Imam عليه السلام said: "Anything whose meat is permissible to eat, its leftover water (su’r) can be used for Wudu' (ablution) and drinking." And Imam عليه السلام was asked about water from which a hawk, falcon, or eagle drinks. Imam عليه السلام said: "Any bird’s leftover water can be used for Wudu' unless you see blood in its beak. If you see blood in its beak, do not perform Wudu' with it, nor drink from it."