(Second chain) The Messenger of Allah (peace be upon him) forbade that "a person should urinate in his bathing place," because most doubts (whispers) arise due to this.
Hadith Referenceالفتح الربانی / كتاب الطهارة / 486
Hadith Gradingمحدثین:انظر الحديث بالطريق الأول ترقیم بيت الأفكار الدولية: 20837
Hadith Takhrij«انظر الحديث بالطريق الأول ترقیم بيت الأفكار الدولية: 20837»
Brief Explanation
Benefits: … In any case, urinating in the bathhouse is prohibited. There can be various reasons for this, for example: the place becoming impure, foul odor emanating from there, the arising of doubts (waswasah) because of it, and natural disposition (fitrah) strongly disliking this act.