The Statement of Allah the Most High: "...When they gave their Bai'a (pledge) to you (O Muḥammad pbuh) under the tree..." (V.48:18)
`Abdullah bin Al-Mughaffal Al-Muzani also said:"The Prophet (ﷺ) also forbade urinating at the place where one takes a bath."
Reference
Sahih al-Bukhari 4842
In-book reference
Book 65, Hadith 363
USC-MSA web (English)
Vol. 6, Book 60, Hadith 365
Translation by Dr. M. Muhsin Khan · Language: EN
Sahih
Arabic Text
وَعَنْ عُقْبَةَ بْنِ صُهْبَانَ، قَالَ سَمِعْتُ عَبْدَ اللَّهِ بْنَ الْمُغَفَّلِ الْمُزَنِيِّ، فِي الْبَوْلِ فِي الْمُغْتَسَلِ.