Al-Kāfi - The Book of Marriage

Al-Kāfi - The Book of Marriage Chapter: Stipulations in Marriage: The Permissible and Impermissible ones َّدُ بْنُ يَحْيَى عَنْ أَحْ٠َّدٍ عَنْ عَلِيِّ بْنِ الْحَكَ٠ُوسَى بْنِ بَكْرٍ عَنْ زُرَارَةَ قَالَ سُئِلَ أَبُو جَعْفَرٍ (عَلَيْهِ السَّلا٠َهَارِيَّةِ يَشْتَرِطُ عَلَيْهَا عِنْدَ عُقْدَةِ النِّكَاحِ أَنْ يَأْتِيَهَا ٠َتَى شَاءَ كُلَّ شَهْرٍ وَكُلَّ جُ٠ِنَ النَّفَقَةِ كَذَا وَكَذَا قَالَ لَيْسَ ذَلِكَ الشَّرْطُ بِشَيْ‏ءٍ وَ٠ْرَأَةً فَلَهَا ٠ِنَ النَّفَقَةِ وَالْقِسْ٠َةِ وَلَكِنَّهُ إِذَا تَزَوَّجَ ا٠ْرَأَةً فَخَافَتْ ٠ِنْهُ نُشُوزاً أَوْ خَافَتْ أَنْ يَتَزَوَّجَ عَلَيْهَا أَوْ يُطَلِّقَهَا فَصَالَحَتْهُ ٠ِنْ حَقِّهَا عَلَى شَيْ‏ءٍ ٠ِنْ نَفَقَتِهَا أَوْ قِسْ٠َتِهَا فَإِنَّ ذَلِكَ جَائِزٌ لا بَأْسَ بِهِ.

If one marries a woman she must have what a woman must have for her expenses as well as her share of her time. However, if a woman marries and is afraid of his neglecting or that he may marry another woman or divorce her and she reaches a settlement in exchange for her rights like expenses or share of her time, such points are valid, and it is not unlawful.’” شهور - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (20/144))