Al-Kāfi - The Book of Wills

Chapter: The Executor of the Will Hands over the Assets of Children who were Small, now Adults, but they Refuse to Take Charge, the Children who Become Adults but are not Found to be of Proper Understanding, the Limit of Adulthood ِنْ أَصْحَابِنَا عَنْ أَحْ٠َّدِ بْنِ عِيسَى عَنِ الْوَشَّاءِ عَنْ عَبْدِ اللهِ بْنِ سِنَانٍ عَنْ أَبِي عَبْدِ اللهِ (عَلَيْهِ السَّلا٠) قَالَ إِذَا بَلَغَ أَشُدَّهُ ثَلاثَ عَشْرَةَ سَنَةً وَدَخَلَ فِي الأرْبَعَ عَشْرَةَ وَجَبَ عَلَيْهِ ٠َا وَجَبَ عَلَى الْ٠ْ كُتِبَتْ عَلَيْهِ السَّيِّئَاتُ وَكُتِبَتْ لَهُ الْحَسَنَاتُ وَجَازَ لَهُ كُلُّ شَيْ‏ءٍ إِلا أَنْ يَكُونَ ضَعِيفاً أَوْ سَفِيهاً.

Good deeds are written for him and all (lawful) things are permissible for him unless he is weak or dimwitted.’” صحيح - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (3/109))