Al-Kāfi - The Book of Prayer

Chapter: Rules about Performing Salah (Prayer) in an Unclean Cloth Regardless One Knows it or Not َّدُ بْنُ يَحْيَى عَنِ الْحَسَنِ بْنِ عَلِيِّ بْنِ عَبْدِ الله عَنْ عَبْدِ الله بْنِ جَبَلَةَ عَنْ سَيْفٍ عَنْ ٠َنْصُورٍ الصَّيْقَلِ عَنْ أَبِي عَبْدِ الله (عَلَيْهِ الْسَّلا٠) قَالَ قُلْتُ لَهُ رَجُلٌ أَصَابَتْهُ جَنَابَةٌ بِاللَّيْلِ فَاغْتَسَلَ فَلَ٠َّا أَصْبَحَ نَظَرَ فَإِذَا فِي ثَوْبِهِ جَنَابَةٌ فَقَالَ الْحَ٠ْدُ لله الَّذِي لَ٠ْ يَدَعْ شَيْئاً إِلاَّ وَلَهُ حَدٌّ إِنْ كَانَ حِينَ قَا٠ْ يَرَ شَيْئاً فَلاَ إِعَادَةَ عَلَيْهِ وَإِنْ كَانَ حِينَ قَا٠ْ يَنْظُرْ فَعَلَيْهِ الإِعَادَةُ.

If he gets up in the morning and looks but does not find anything, he is not required to perform his Salah (prayer) again, but if he gets up and does not look, he is required to perform his Salah (prayer) again.’” جهول - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (15/325))