What Defiles Clothing and the Body
Man Lā Yaḥḍuruh al-Faqīh|Volume 1|Book 1|Chapter 17
وَ قَدْ رُوِيَ: «فِي اَلْمَنِيِّ أَنَّهُ إِذَا كَانَ اَلرَّجُلُ جُنُباً حَيْثُ قَامَ وَ نَظَرَ وَ طَلَبَ فَلَمْ يَجِدْ شَيْئاً فَلاَ شَيْءَ عَلَيْهِ فَإِنْ كَانَ لَمْ يَنْظُرْ وَ لَمْ يَطْلُبْ فَعَلَيْهِ أَنْ يَغْسِلَهُ وَ يُعِيدَ صَلاَتَهُ.
It is narrated regarding semen that if a man is junub (ritually impure due to seminal discharge) and gets up, looks, and finds nothing, then there is nothing upon him. However, if he does not look and does not check, he must wash himself and repeat his prayer.
- Ṣaḥīḥ al-Faqīh