Jami` at-Tirmidhi 21
جامع الترمذي#21Da'ifAbdullah 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
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirSahih
Al-AlbaniSahih
Bashar Awad MaaroufHasan
Zubair Ali ZaiDaif
In-book reference: 1:21