Al-Kāfi

Hadith 15
willrights
3- أَبُو عَلِيٍّ الأشْعَرِيُّ عَنْ عَبْدِ اللهِ بْنِ مُحَمَّدٍ عَنْ عَلِيِّ بْنِ الْحَكَمِ عَنْ سَيْفِ بْنِ عَمِيرَةَ عَنْ مَنْصُورِ بْنِ حَازِمٍ عَنْ أَبِي عَبْدِ اللهِ (عَلَيْهِ السَّلام) قَالَ إِذَا أَوْصَى الرَّجُلُ إِلَى أَخِيهِ وَهُوَ غَائِبٌ فَلَيْسَ لَهُ أَنْ يَرُدَّ عَلَيْهِ وَصِيَّتَهُ لأنَّهُ لَوْ كَانَ شَاهِداً فَأَبَى أَنْ يَقْبَلَهَا طَلَبَ غَيْرَهُ.
3. Abu Ali al-Ash‘ariy has narrated from Muhammad ibn ‘Abd al-Jabbar from Ali ibn al-Hakam from Sayf ibn ’Amirah from Mansur ibn Hazim who has narrated the following: “Abu ‘Abd Allah (a.s.), has said, ‘If a man makes a will in which he appoints his brother as the executor when he is absent, he cannot refuse the appointment for if he was present and refused, another person could have been appointed as the executor.’”
Source: Shaykh Muḥammad b. Yaʿqūb al-Kulaynī