Chapter on the Divorce by a Slave
Man Lā Yaḥḍuruh al-Faqīh|Volume 3|Book 4|Chapter 20
وَ فِي رِوَايَةِ سَمَاعَةَ عَنْ أَبِي عَبْدِ اَللَّهِ عَلَيْهِ اَلسَّلاَمُ قَالَ: "عِدَّةُ اَلْأَمَةِ اَلَّتِي لاَ تَحِيضُ خَمْسٌ وَ أَرْبَعُونَ لَيْلَةً".
In the narration of Samaʿah from Abu Abdullah عليه السلام, he said: "The waiting period (ʿiddah) of a bondwoman who does not menstruate is forty-five nights."
- Ṣaḥīḥ al-Faqīh