3. Abu Dawud has narrated from al-Husayn ibn Sa‘id from his brother al-Hassan from Zur’ah, from Sama‘ah who has said the following
“I once asked him (the Imam) (a.s.), ‘Is it permissible to use for Wudu’ the leftover water from which animals have drunk?’ He (the Imam) replied, ‘As far as the camel, cow and sheep are concerned, it is permissible.’”