Hadith #77 (Sunan Ibn Majah)
Book: The Book of Purification and its Sunnah
Narrator(s): Abdullah bin Muhammad عبد الله بن محمد, ibn Abbas, Ikrama عكرمة, Jabir ibn 'Abdullah, Muhammad bin Isma'il bin Ibrahim محمد بن إسماعيل بن إبراهيم بن مقسم, Nazar bin Hayan al-Asadi نزار بن حيان الأسدي, Yonus bin Muhammad bin Muslim يونس بن محمد بن مسلم المؤدب

The Messenger of Allah forbade urinating into standing water.

Source: https://parallelquran.com/hadith/sunan-ibn-majah-77/