مُحَمَّدُ بْنُ يَحْيَى عَنْ عَلِيِّ بْنِ الْحُسَيْنِ النَّيْسَابُورِيِّ عَنْ عَبْدِ اللَّهِ بْنِ مُحَمَّدٍ عَنْ عَلِيِّ بْنِ الرَّيَّانِ عَنْ يُونُسَ عَنْ عُمَرَ بْنِ يَزِيدَ قَالَ أَرَدْتُ الدُّخُولَ عَلَى أَبِي عَبْدِ اللَّهِ ( عليه السلام ) فَلَبِسْتُ ثِيَابِي وَ نَشَرْتُ طَيْلَسَاناً جَدِيداً كُنْتُ مُعْجَباً بِهِ فَزَحَمَنِي جَمَلٌ فِي بَعْضِ الطَّرِيقِ فَتَمَزَّقَ مِنْ كُلِّ وَجْهٍ فَاغْتَمَمْتُ لِذَلِكَفَدَخَلْتُ عَلَى أَبِي عَبْدِ اللَّهِ ( عليه السلام ) فَنَظَرَ إِلَى الطَّيْلَسَانِ فَقَالَ لِي مَا لِي أَرَاكَ مُنْهَتِكاً فَأَخْبَرْتُهُ بِالْقِصَّةِ فَقَالَ يَا عُمَرُ إِذَا لَبِسْتَ ثَوْباً جَدِيداً فَقُلْ لَا إِلَهَ إِلَّا اللَّهُ مُحَمَّدٌ رَسُولُ اللَّهِ تَبْرَأْ مِنَ الْآفَةِ وَ إِذَا أَحْبَبْتَ شَيْئاً فَلَا تُكْثِرْ مِنْ ذِكْرِهِ فَإِنَّ ذَلِكَ مِمَّا يَهُدُّكَ وَ إِذَا كَانَتْ لَكَ إِلَى رَجُلٍ حَاجَةٌ فَلَا تَشْتِمْهُ مِنْ خَلْفِهِ فَإِنَّ اللَّهَ يُوقِعُ ذَلِكَ فِي قَلْبِهِ .
6. Muhammad ibn Yahya has narrated from Ali ibn al-Husayn al-Naysaburiy from ‘Abd Allah ibn Muhammad from Ali ibn al-Rayyan from Yunus from ‘Umar ibn Yazid who has said the following: “I once wanted to visit abu ‘Abd Allah . I dressed up and spread my Taylisan (pallium) which was new and I liked it very much. Somewhere on the road the camel gave me a hard time and it (my dress) was torn in pieces all over. I became depress very much. I then met abu ‘ Abd Allah , he looked at my Taylisan and asked, ‘Why do I see your cloth ripped apart?’ I then informed him (the Imam) about what had happened. He (the Imam) said, ‘O ‘Umar, whenever you will wear a new pair of clothes say, “No one deserves worship except Allah. Muhammad is the Messenger of Allah.’ You will remain safe from misfortunes and if you like something do not mention it very often because mentioning it causes you great damage. If you need something from a person do not revile him behind his back because Allah drops it in his heart.’” 