Man Lā Yaḥḍuruh al-Faqīh
Hadith 185187 - وَ سُئِلَ: عَنِ اَلرَّجُلِ يَغْتَسِلُ ثُمَّ يَجِدُ بَعْدَ ذَلِكَ بَلَلاً وَ قَدْ كَانَ بَالَ قَبْلَ أَنْ يَغْتَسِلَ قَالَ «لِيَتَوَضَّأْ وَ إِنْ لَمْ يَكُنْ بَالَ قَبْلَ اَلْغُسْلِ فَلْيُعِدِ اَلْغُسْلَ.
Hadith.187 – Ubaydullah ibn Ali Al-Halabi narrates that Imam Jafar ibn Muhammad Al-Sadiq (as) was asked about a man who performs ghusl (ritual bathing) and then later finds wetness, having urinated before performing the ghusl.
Imam (as) said: 'He should perform wudu (ablution). But if he had not urinated before performing the ghusl, he should repeat the ghusl.'