٤- أَحْمَدُ بْنُ مُحَمَّدٍ عَنْ إِسْمَاعِيلَ بْنِ سَعْدٍ الأشْعَرِيِّ عَنْ أَبِي الْحَسَنِ الرِّضَا (عَلَيْهِ السَّلام) قَالَ سَأَلْتُهُ عَنْ رَجُلٍ حَلَفَ فِي قَطِيعَةِ رَحِمٍ فَقَالَ قَالَ رَسُولُ اللهِ (صَلَّى اللهُ عَلَيْهِ وَآلِه) لا نَذْرَ فِي مَعْصِيَةٍ وَلا يَمِينَ فِي قَطِيعَةِ رَحِمٍ قَالَ وَسَأَلْتُهُ عَنْ رَجُلٍ أَحْلَفَهُ السُّلْطَانُ بِالطَّلاقِ وَغَيْرِ ذَلِكَ فَحَلَفَ قَالَ لا جُنَاحَ عَلَيْهِ وَسَأَلْتُهُ عَنْ رَجُلٍ يَخَافُ عَلَى مَالِهِ مِنَ السُّلْطَانِ فَيَحْلِفُ لِيَنْجُوَ بِهِ مِنْهُ قَالَ لا جُنَاحَ عَلَيْهِ وَسَأَلْتُهُ هَلْ يَحْلِفُ الرَّجُلُ عَلَى مَالِ أَخِيهِ كَمَا عَلَى مَالِهِ قَالَ نَعَمْ.
4. Ahmad ibn Muhammad has narrated from ’Isma‘il ibn Sa‘d al -Ash‘ariy who has narrated the following: “I once asked abu al-Hassan, al-Rida’ , about the case of a man who takes an oath to cut off relations with relatives. He (the Imam) said that the Messenger of Allah, O Allah, grant compensation to Muhammad and his family worthy of their services to Your cause, has said, ‘A vow for an unlawful matter is not valid and an oath to cut off relations with relatives is not valid.’ I then asked about a man who is made by Sultan to divorce or in other matters. He (the Imam) said, ‘It is not an offense on his part.’ I then asked about a man who fears from Sultan for his assets and takes an oath to protect them from him. He (the Imam) said, ‘It is not an offense on his part.’ I asked if a man could take an oath to protect the assets of his brothers as he does for himself. He (the Imam) said, ‘Yes, it is permissible.’” 