Ahmad ibn Muhammad narrated from Ali ibn al-Hakam, from Aban, from Abu Usamah and Abu Yusuf Ya'qub ibn Uthaym, from Abu Abdullah عليه السلام, who said: Imam عليه السلام said: "If a bird, chicken, or mouse falls into a well, draw seven buckets of water from it." We asked: "What about our prayer, Wudu' (ablution), and what has come into contact with our clothes?" Imam عليه السلام said: "There is no harm."