15. Muhammad ibn Yahya has narrated from Muhammad ibn al-Husayn from Wuhayb ibn Hafs from abu Basir who has said the following: “I once asked him (the Imam) عليه السلام, about the case of a snake that enters in a Hub (large water container) which has water in it and then comes out. He (the Imam) said, ‘If one can find other water it should be spilled away.’”