`Sayyiduna Abu Hurairah (may Allah be pleased with him) narrates from the Noble Prophet (peace and blessings be upon him) that he (peace be upon him) said: None of you should urinate in standing water (and also do not do this: that after urinating) then perform ghusl (ritual bath) with that water. In another narration, it is stated: Do not do this, that you urinate in standing water which does not flow, and then perform ghusl with that same water.