٩- عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ أَحْمَدَ بْنِ مُحَمَّدِ بْنِ خَالِدٍ عَنْ عِدَّةٍ مِنْ أَصْحَابِنَا عَنْ عَلِيِّ بْنِ أَسْبَاطٍ عَنْ حُسَيْنِ بْنِ خَارِجَةَ عَنْ مُيَسِّرِ بْنِ عَبْدِ الْعَزِيزِ قَالَ قَالَ لِي أَبُو عَبْدِ اللهِ (عَلَيْهِ السَّلام) لا تُعَامِلْ ذَا عَاهَةٍ فَإِنَّهُمْ أَظْلَمُ شَيْ‏ءٍ. 
9. A number of our people have narrated from Ahmad ibn Muhammad ibn Khalid from A number of our people have narrated from Ali ibn Asbat from Husayn ibn Kharijah from Muyassir ibn ‘Abd al-‘Aziz who has said the following: “Abu ‘Abd Allah , has said, ‘You must not form contracts with people who suffer from crippling diseases; they are most unjust things’ (do not avoid transmitting their disease to others).” 