Chapter on Rare Cases of Bequests
Man Lā Yaḥḍuruh al-Faqīh|Volume 4|Book 1|Chapter 126
وَ رَوَى اِبْنُ أَبِي عُمَيْرٍ وَ صَفْوَانُ بْنُ يَحْيَى عَنْ عَبْدِ اَلرَّحْمَنِ بْنِ اَلْحَجَّاجِ قَالَ: سَأَلْتُ أَبَا اَلْحَسَنِ عَلَيْهِ اَلسَّلاَمُ عَمَّا يَقُولُ اَلنَّاسُ فِي اَلْوَصِيَّةِ بِالثُّلُثِ وَ اَلرُّبُعِ عِنْدَ مَوْتِهِ أَ شَيْءٌ صَحِيحٌ مَعْرُوفٌ أَمْ كَيْفَ صَنَعَ أَبُوكَ فَقَالَ "اَلثُّلُثُ ذَلِكَ اَلَّذِي صَنَعَ أَبِي عَلَيْهِ اَلسَّلاَمُ ".
Ibn Abi Umayr and Safwan ibn Yahya narrated from Abdur Rahman ibn Al-Hajjaj, who said: I asked Abu Al-Hasan عليه السلام about what people say regarding making a will for one-third or one-fourth of one's wealth at the time of death. Is this something correct and well-known, or how did your father عليه السلام handle this matter? Imam عليه السلام replied: "The one-third is what my father عليه السلام, peace be upon him, practiced."
- Ṣaḥīḥ al-Faqīh, p. 349