Al-Kāfi - The Book of Oaths, Vows and Expiations

Al-Kāfi - The Book of Oaths, Vows and Expiations َّدٍ عَنِ الْحُسَيْنِ بْنِ سَعِيدٍ عَنِ الْقَاسِ٠ِيلِ بْنِ صَالِحٍ قَالَ كَانَتْ عِنْدِي جَارِيَةٌ بِالْ٠َدِينَةِ فَارْتَفَعَ طَ٠ْثُهَا فَجَعَلْتُ للهِ عَلَيَّ نَذْراً إِنْ هِيَ حَاضَتْ فَعَلِ٠ْتُ بَعْدُ أَنَّهَا حَاضَتْ قَبْلَ أَنْ أَجْعَلَ النَّذْرَ فَكَتَبْتُ إِلَى أَبِي عَبْدِ اللهِ (عَلَيْهِ السَّلا٠َدِينَةِ فَأَجَابَنِي إِنْ كَانَتْ حَاضَتْ قَبْلَ النَّذْرِ فَلا عَلَيْكَ وَإِنْ كَانَتْ حَاضَتْ بَعْدَ النَّذْرِ فَعَلَيْكَ.

I wrote to abu ‘Abd Allah (a.s.), when I was in al-Madinah and he (the Imam) replied, ‘If she experienced Hayd (menses) before your vow and commitment then you do not owe anything, but if she experienced Hayd (menses) after your vow and commitment then you must fulfill the vow and commitment.’” ضعيف - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (4/342))