Ibn Majah

1؎: The noble habit of the Prophet sallallahu alayhi wa sallam was that he would mostly urinate while sitting. In the previous chapter, in the hadith of Hudhayfah radi Allahu anhu in which this is mentioned, the scholars have provided many explanations, most of which are not free from contrivance. It can be said that on that occasion, the Prophet sallallahu alayhi wa sallam did so to demonstrate permissibility, or due to a severe necessity; otherwise, urinating while standing is prohibited. The denial by Umm al-Mu’minin A’ishah radi Allahu anha is based on her knowledge—she is describing the usual practice, while Hudhayfah radi Allahu anhu reported his own observation, which was a one-time incident and serves as evidence for permissibility.