٦ـ عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ أَحْمَدَ بْنِ مُحَمَّدِ بْنِ خَالِدٍ عَنْ أَبِيهِ عَنْ خَلَفِ بْنِ حَمَّادٍ عَنْ مُفَضَّلِ بْنِ عُمَرَ عَنْ أَبِي عَبْدِ الله (عَلَيهِ السَّلام) قَالَ لا يَرَى أَحَدُكُمْ إِذَا أَدْخَلَ عَلَى مُؤْمِنٍ سُرُوراً أَنَّهُ عَلَيْهِ أَدْخَلَهُ فَقَطْ بَلْ وَالله عَلَيْنَا بَلْ وَالله عَلَى رَسُولِ الله (صَلَّى اللهُ عَلَيْهِ وآلِه).
6. A number of our people have narrated from Ahmad ibn Muhammad ibn Khalid from his father from Khalaf ibn Hammad from Mufaddal ibn ‘Umar from Abu ‘Abdillah  who has said the following: “One of you must not think that when he brings joy to the heart of a believer he has brought joy to his heart only. I swear by Allah, in fact, he has done so to our hearts and also, I swear by Allah, he has done so to (the heart of) the Messenger of Allah.” 