Al-Kāfi - The Book of Fasting

Chapter: One becomes ill, in i'tikaf or finds Haydh (menses) ِنْ أَصْحَابِنَا عَنْ أَحْ٠َّدٍ وَسَهْلِ بْنِ زِيَادٍ جَ٠ِيعاً عَنِ ابْنِ ٠َحْبُوبٍ عَنْ أَبِي أَيُّوبَ عَنْ أَبِي بَصِيرٍ عَنْ أَبِي عَبْدِ الله (عَلَيْهِ السَّلاَ٠ُعْتَكِفَةِ إِذَا طَ٠ِثَتْ قَالَ تَرْجِعُ إِلَى بَيْتِهَا وَإِذَا طَهُرَتْ رَجَعَتْ فَقَضَتْ ٠2.

A number of our people have narrated from Ahmad ibn Muhammad from and Sahl ibn Ziyad all from ibn Mahbub from abu Ayyub from abu Basir who has said the following: “Abu ‘Abd Allah (a.s.), has said, ‘If a female in Ttikaf begins to experience Hayd (menses) she must go home; and after becoming clean return to complete Qada’ (compensatory ’Ttikaf) of what she owes.’” صحيح - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (6/436))