Al-Kāfi - The Book of Taharat (Cleansing)

Al-Kāfi - The Book of Taharat (Cleansing) Chapter: Expressions to Say When Entering a Lavatory and When Coming Out 16ـ عَنْهُ عَنْ أَحْ٠َدَ عَنِ ابْنِ فَضَّالٍ عَنِ ابْنِ بُكَيْرٍ عَنْ بَعْضِ أَصْحَابِنَا عَنْ أَبِي عَبْدِ الله (عَلَيْهِ الْسَّلا٠) فِي الرَّجُلِ يَبُولُ وَيَنْسَى أَنْ يَغْسِلَ ذَكَرَهُ حَتَّى يَتَوَضَّأَ وَيُصَلِّيَ قَالَ يَغْسِلُ ذَكَرَهُ وَيُعِيدُ الصَّلاَةَ وَلاَ يُعِيدُ الْوُضُوءَ.

If you wash your buttocks clean but forget washing your urethra clean and perform Salah (prayer), you must take Wudu’, wash your urethra and perform your Salah (prayer) again. It is because urine is not like feces.’” رسل - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (3/60))