Man Lā Yaḥḍuruh al-Faqīh
Hadith 13324547 - وَ رَوَى اَلْعَلاَءُ عَنْ مُحَمَّدِ بْنِ مُسْلِمٍ قَالَ: سَأَلْتُهُ عَنْ رَجُلٍ اِشْتَرَى جَارِيَةً وَ لَمْ يَكُنْ صَاحِبُهَا يَطَؤُهَا أَ يَسْتَبْرِئُ رَحِمَهَا قَالَ "نَعَمْ" قُلْتُ جَارِيَةٌ لَمْ تَحِضْ كَيْفَ يَصْنَعُ بِهَا قَالَ "أَمْرُهَا شَدِيدٌ فَإِنْ أَتَاهَا فَلاَ يُنْزِلْ حَتَّى يَسْتَبِينَ لَهُ أَنَّهَا حُبْلَى أَوْ لاَ " قُلْتُ لَهُ فِي كَمْ يَسْتَبِينُ لَهُ ذَلِكَ قَالَ "فِي خَمْسٍ وَ أَرْبَعِينَ لَيْلَةً".
Hadith.4547 - Al-Alaa narrated from Muhammad ibn Muslim, who said: I asked him about a man who purchased a bondwoman and her previous owner had not had relations with her. Should he still observe an istibra' (waiting period) for her womb?
Imam (as) said: "Yes."
I asked: "What about a bondwoman who has not yet menstruated? What should he do with her?"
Imam (as) said: "Her matter is more severe. If he has relations with her, he must not ejaculate until it becomes clear whether she is pregnant or not."
I asked: "How long will it take for this to become clear?"
Imam (as) said: "In forty-five nights."