مُحَمَّدُ بْنُ يَحْيَى عَنْ أَحْمَدَ بْنِ مُحَمَّدِ بْنِ عِيسَى عَنْ مُوسَى بْنِ الْقَاسِمِ عَنْ مُحَمَّدِ بْنِ عَلِيِّ بْنِ جَعْفَرٍ عَنِ الرِّضَا ( عليه السلام ) قَالَ جَاءَ رَجُلٌ إِلَى أَبِي جَعْفَرٍ ( عليه السلام ) فَقَالَ يَا أَبَا جَعْفَرٍ مَا تَقُولُ فِي الشِّطْرَنْجِ الَّتِي يَلْعَبُ بِهَا النَّاسُ فَقَالَ أَخْبَرَنِي أَبِي عَلِيُّ بْنُ الْحُسَيْنِ عَنِ الْحُسَيْنِ بْنِ عَلِيٍّ عَنْ أَمِيرِ الْمُؤْمِنِينَ ( عليه السلام ) قَالَ قَالَ رَسُولُ اللَّهِ ( صلى الله عليه وآله ) مَنْ كَانَ نَاطِقاً فَكَانَ مَنْطِقُهُ لِغَيْرِ ذِكْرِ اللَّهِ عَزَّ وَ جَلَّ كَانَ لَاغِياً وَ مَنْ كَانَ صَامِتاً فَكَانَ صَمْتُهُ لِغَيْرِ ذِكْرِ اللَّهِ كَانَ سَاهِياً ثُمَّ سَكَتَ فَقَامَ الرَّجُلُ وَ انْصَرَفَ .
14. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad ibn ‘Isa from Musa ibn al-Qasim from Muhammad ibn Ali ibn Ja‘far who has said the following: “Al-Rida’ , has said, that once a man came to abu Ja‘far , and said, ‘O abu Ja‘far, what do you say about chess with which people play?’ He (the Imam) said, ‘My father narrated to me from Ali ibn al-Husayn, from al-Husayn ibn Ali from ’Amir al-Mu’minin, ‘Alayhim al- Salam. He (the Imam) has said that the Messenger of Allah, O Allah, grant compensation to Muhammad and his family worthy of their services to Your cause, has said, “If one speaks and his speech is something other than speaking of Allah, most Majestic, most Glorious, he is doing something useless. If one is silent and his silence is for something other than Allah he is forgetful.’” He (the Imam) then remained calm and the man left.’” 