Man Lā Yaḥḍuruh al-Faqīh
Hadith 5362107 - وَ رَوَى اَلْحَسَنُ بْنُ اَلْجَهْمِ عَنْ أَبِي اَلْحَسَنِ عَلَيْهِ اَلسَّلاَمُ قَالَ: سَأَلْتُهُ عَنِ اَلْمُعْتَكِفِ يَأْتِي أَهْلَهُ قَالَ «لاَ يَأْتِي اِمْرَأَتَهُ لَيْلاً وَ لاَ نَهَاراً وَ هُوَ مُعْتَكِفٌ ».
Hadith.2107 - It is narrated by Al-Hasan ibn Al-Jahm, from Abu Al-Hasan (as), who was asked about a person performing i'tikaf engaging in relations with their spouse.
Imam (as) said: "They must not approach their wife, neither by night nor by day, while they are in i'tikaf."