Jami At Tirmidhi
21
Sahih+3

Abdullah bin Mughaffal narrated that :the Prophet prohibited that a man should urinate in his bathing area. And he said: "It will only cause misgivings." [He said:] There are narrations on This topic from "a man from among the Companions of the Prophet

SahihAhmad Muhammad Shakir
SahihAl-Albani