Sunan an-Nasa'i 36
سنن النسائي#36Da'ifIt was narrated from 'Abdullah bin Mughaffal that the Prophet (ﷺ) said:"None of you should urinate in the place where he bathes, for most Waswas (devilish whispers) [1] come from that." [1] I.e., with regard to whether the urine has soiled his body or not
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih
Al-AlbaniDaif
Zubair Ali ZaiDaif
In-book reference: 1:36