٤- عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ سَهْلِ بْنِ زِيَادٍ وَأَحْمَدَ بْنِ مُحَمَّدٍ عَنِ ابْنِ مَحْبُوبٍ عَنِ الْعَلاءِ عَنْ مُحَمَّدِ بْنِ مُسْلِمٍ عَنْ أَبِي جَعْفَرٍ (عَلَيْهِ السَّلام) قَالَ سَأَلْتُهُ عَنْ شِرَاءِ أَرْضِ الذِّمَّةِ فَقَالَ لا بَأْسَ بِهَا فَتَكُونُ إِذَا كَانَ ذَلِكَ بِمَنْزِلَتِهِمْ تُؤَدِّي عَنْهَا كَمَا يُؤَدُّونَ قَالَ وَسَأَلَهُ رَجُلٌ مِنْ أَهْلِ النِّيلِ عَنْ أَرْضٍ اشْتَرَاهَا بِفَمِ النِّيلِ فَأَهْلُ الأرْضِ يَقُولُونَ هِيَ أَرْضُهُمْ وَأَهْلُ الأسْتَانِ يَقُولُونَ هِيَ مِنْ أَرْضِنَا قَالَ لا تَشْتَرِهَا إِلا بِرِضَا أَهْلِهَا.
4. A number of our people have narrated from Sahl ibn Ziyad and Ahmad ibn Muhammad from ibn Mahbub from al-‘Ala’ from Muhammad ibn Muslim who has said the following: “This is concerning my question before abu Ja‘far , about buying the land of tax payers (non-Muslims). He (the Imam) said, ‘It is not unlawful. On its coming (the time of the rise of al-Mahdiy with Divine Authority and Power) you will pay what they pay.’ I then asked him (the Imam) about the case of a man from people of al-Nil and a land that he had bought at the outlet of al- Nil about which people of that area said it was their land and people of al-‘Ustan said it was of their land. He (the Imam) said, ‘You must not buy it without agreement of its owner.’” 