6. A number of our people have narrated from Ahmad ibn Muhammad from al-Husayn ibn Sa‘id from ibn Sinan from ibn Muskan from abu Basir who has said the following:

“I once asked abu ‘Abd Allah , about things that fall into the wells. He (the Imam) said, ‘Because of rats and similar things, seven buckets of water must be drawn out, unless the water is changed, in which case drawing water out must continue until it becomes clean. If a dog falls in it, if you can, draw all of the water out. Falling in a well of anything without blood like a scorpion or beetle and similar things is not harmful.’”