Wasā’il al-Shīʿa, Chapter on the impurification of what is lesser than the kurr from inert (water) by the coming in contact of najasa to it, when it comes upon it even if it did not become altered – Ḥadīth #16
16 – `Ali b. Ja`far in his book from his brother.
He said: I asked him about a cask of water in which there is a thousand rotl (of water), in which an uqiyya of urine falls in, is it appropriate to drink it or do wudu from it? He said: It is not appropriate.
 16 ـ علي بن جعفر في ( كتابه ) عن أخيه، قال: سألته عن حب ماء فيه ألف رطل وقع فيه أوقية بول، هل يصلح شربه أو الوضوء منه؟ قال: لايصلح.