It is narrated from Sayyiduna Abdullah bin Mughaffal (may Allah be pleased with him) that he disliked urinating in the bathing place and would say: "It is a cause of whisperings (waswasah)." Yazid bin Ibrahim al-Tustari narrated it this way.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الطهارة / 475