Mishkat al-Masabih
Mishkat al-Masabih 365
How to act when relieving oneself - Section 3
Arabic hadith text
عَنْ عَائِشَةَ رَضِيَ اللَّهُ عَنْهَا قَالَتْ: «مَنْ حَدَّثَكُمْ أَنَّ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ كَانَ يَبُولُ قَائِمًا فَلَا تُصَدِّقُوهُ مَا كَانَ يَبُول إِلَّا قَاعِدا» . رَوَاهُ أَحْمد وَالتِّرْمِذِيّ وَالنَّسَائِيّ
Translation
‘A'isha said, “If anyone tells you that the Prophet used to pass water standing, do not believe him. He never passed water but when sitting.” Ahmad, Tirmidhi, and Nasa’i transmitted it.