١٧- عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ عَنِ ابْنِ أَبِي عُمَيْرٍ عَنْ عَمَّارِ بْنِ مَرْوَانَ قَالَ قُلْتُ لأبِي عَبْدِ اللهِ (عَلَيْهِ السَّلام) إِنَّ أَبِي حَضَرَهُ الْمَوْتُ فَقِيلَ لَهُ أَوْصِ فَقَالَ هَذَا ابْنِي يَعْنِي عُمَرَ فَمَا صَنَعَ فَهُوَ جَائِزٌ فَقَالَ لَهُ أَبُو عَبْدِ اللهِ (عَلَيْهِ السَّلام) فَقَدْ أَوْصَى أَبُوكَ وَأَوْجَزَ قُلْتُ فَإِنَّهُ أَمَرَ لَكَ بِكَذَا وَكَذَا فَقَالَ أَجْرِهِ قُلْتُ وَأَوْصَى بِنَسَمَةٍ مُؤْمِنَةٍ عَارِفَةٍ فَلَمَّا أَعْتَقْنَاهُ بَانَ لَنَا أَنَّهُ لِغَيْرِ رِشْدَةٍ فَقَالَ قَدْ أَجْزَأَتْ عَنْهُ إِنَّمَا مَثَلُ ذَلِكَ مَثَلُ رَجُلٍ اشْتَرَى أُضْحِيَّةً عَلَى أَنَّهَا سَمِينَةٌ فَوَجَدَهَا مَهْزُولَةً فَقَدْ أَجْزَأَتْ عَنْهُ.
17. Ali ibn Ibrahim has narrated from his father from Ibn Abi ‘Umayr from ‘Ammar ibn Marwan who has narrated the following: “I once said to abu ‘Abd Allah , ‘My father was about to die and he was told to make a will.’ He said, ‘This is my son, meaning, ‘Umar. Whatever he does is permissible.’ Abu ‘Abd Allah , said to him, ‘Your father has made a will and has made it concise.’ I said, ‘He has designated for you such and such amount.’ He (the Imam) said, ‘You can execute it.’ I then said that he made a will to free a believing well-informed slave but when we freed it was found out that the slave was born out of wedlock.’ He (the Imam) said, ‘It is sufficient. It is like one who buys an animal for sacrificial offering thinking that it is healthy, but finds it out to be skinnier but it is sufficient to meet the legal requirement.’” 