Chapter on Temporary Marriage (Mutʿah)
Man Lā Yaḥḍuruh al-Faqīh|Volume 3|Book 3|Chapter 44
وَ رَوَى زُرْعَةُ عَنْ سَمَاعَةَ قَالَ: سَأَلْتُهُ عَنْ رَجُلٍ أَدْخَلَ جَارِيَةً يَتَمَتَّعُ بِهَا ثُمَّ أُنْسِيَ حَتَّى وَاقَعَهَا هَلْ يَجِبُ عَلَيْهِ حَدُّ اَلزَّانِي قَالَ "لاَ وَ لَكِنْ يَتَمَتَّعُ بِهَا بَعْدَ اَلنِّكَاحِ وَ يَسْتَغْفِرُ اَللَّهَ مِمَّا أَتَى".
It is narrated from Zur'ah, from Sama'ah, who said: I asked him about a man who took a bondwoman for temporary marriage but forgot and had intercourse with her. Does he deserve the punishment of a fornicator? Imam عليه السلام replied: "No, but he should perform the temporary marriage contract with her again and seek forgiveness from Allah سبحانه وتعالى for what he has done."
- Ṣaḥīḥ al-Faqīh, p. 288