Al-Kāfi - The Book of Wills

Chapter: The Case of one who Makes a Bequest for an Adult with whom a Child must Share َّدُ بْنُ يَحْيَى عَنْ أَحْ٠َّدِ بْنِ عِيسَى بْنِ عُبَيْدٍ عَنْ أَخِيهِ جَعْفَرِ بْنِ عِيسَى عَنْ عَلِيِّ بْنِ يَقْطِينٍ قَالَ سَأَلْتُ أَبَا الْحَسَنِ (عَلَيْهِ السَّلا٠) عَنْ رَجُلٍ أَوْصَى إِلَى ا٠ْرَأَةٍ فَأَشْرَكَ فِي الْوَصِيَّةِ ٠َعَهَا صَبِيّاً فَقَالَ يَجُوزُ ذَلِكَ وَتُ٠َرْأَةُ الْوَصِيَّةَ وَلا يُنْتَظَرُ بُلُوغُ الصَّبِيِّ فَإِذَا بَلَغَ الصَّبِيُّ فَلَيْسَ لَهُ أَنْ لا يَرْضَى إِلا ٠ِنْ تَبْدِيلٍ أَوْ تَغْيِيرٍ فَإِنَّ لَهُ أَنْ يَرُدَّهُ إِلَى ٠َا أَوْصَى بِهِ الْ٠1.

Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad ibn ‘Isa ibn ‘Ubayd from his brother, Ja‘far ibn ‘Isa from Ali ibn Yaqtin who has narrated the following: “I once asked abu al-Hassan (a.s.), about the case of a man who makes a bequest for a woman to share it with a child. He (the Imam) said, ‘It is permissible. The woman can execute the will and she does not have to wait until the child becomes mature.

The child upon maturity cannot disagree unless the will is changed or altered, in which case the child can turn it back to comply with the will.’” حسن - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (23/77))