It was narrated from Bukair bin 'Abdullah bin Ashajj that:
Abu Sa'ib, the freed slave of Hisham bin Zuhrah, told him that he heard Abu Hurairah say: The Messenger of Allah said: 'No one of you should bathe in standing water when he is sexually impure.' He (Abu Sa'ib) said: What should he do, O Abu Hurairah? He said: Let him take some out (and pour it over himself).