٩ـ عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ أَحْمَدَ بْنِ مُحَمَّدِ بْنِ خَالِدٍ عَنْ أَحْمَدَ بْنِ مُحَمَّدِ بْنِ أَبِي نَصْرٍ قَالَ قُلْتُ لِلرِّضَا (عَلَيهِ السَّلام) جُعِلْتُ فِدَاكَ ادْعُ الله عَزَّ وَجَلَّ أَنْ يَرْزُقَنِيَ الْحَلالَ فَقَالَ أَ تَدْرِي مَا الْحَلالُ قُلْتُ الَّذِي عِنْدَنَا الْكَسْبُ الطَّيِّبُ فَقَالَ كَانَ عَلِيُّ بْنُ الْحُسَيْنِ (عَلَيهِما السَّلام) يَقُولُ الْحَلالُ هُوَ قُوتُ الْمُصْطَفَيْنَ ثُمَّ قَالَ قُلْ أَسْأَلُكَ مِنْ رِزْقِكَ الْوَاسِعِ.
9. A number of our people have narrated from Ahmad ibn Muhammad ibn Khalid from Ahmad ibn Muhammad ibn abu Nasr who has said the following: “Once I said to al-Rida  ‘May Allah keep my soul in service for your cause. Pray to Allah, the Most Majestic, the Most Holy, to grant me lawful sustenance.’ The Imam said, ‘Do you know what lawful sustenance is?’ I said, ‘That which we earn and is pure.’ The Imam said that Ali ibn al-Husayn  would say, ‘Lawful sustenance is the sustenance of the chosen ones.’ The Imam then instructed me to say, ‘I plead before You for Your vast sustenance.’” 