١٩ـ أَحْمَدُ بْنُ مُحَمَّدٍ عَنِ الْعَوْفِيِّ عَنْ عَلِيِّ بْنِ الْحُسَيْنِ عَنْ مُحَمَّدِ بْنِ عَبْدِ الله بْنِ زُرَارَةَ عَنْ مُحَمَّدِ بْنِ الْفُضَيْلِ عَنْ أَبِي حَمْزَةَ قَالَ عَرَضَ بِي وَجَعٌ فِي رُكْبَتِي فَشَكَوْتُ ذَلِكَ إِلَى أَبِي جَعْفَرٍ (عَلَيهِ السَّلام) فَقَالَ إِذَا أَنْتَ صَلَّيْتَ فَقُلْ يَا أَجْوَدَ مَنْ أَعْطَى وَيَا خَيْرَ مَنْ سُئِلَ وَيَا أَرْحَمَ مَنِ اسْتُرْحِمَ ارْحَمْ ضَعْفِي وَقِلَّةَ حِيلَتِي وَعَافِنِي مِنْ وَجَعِي قَالَ فَفَعَلْتُهُ فَعُوفِيتُ. 
19. Ahmad ibn Muhammad has narrated from al-‘Awfi from Ali ibn al-Husayn from Muhammad ibn ‘Abd Allah ibn Zurara from Muhammad ibn al-Fudayl from abu Hamza who has said the following: “Once my knee became painful and I complain before abu Ja’far  and he instructed me to say after prayer, ‘O the Most Generous of the givers, O the Best of those pleaded for help, O the Most Merciful of the merciful ones, be kind to my weakness, lack of strength and grant me recovery from my pain.’ I (the narrator) followed the instruction and recovered thereafter.” 