٢٠ـ أَبُو عَلِيٍّ الأشْعَرِيُّ عَنِ الْحَسَنِ بْنِ عَلِيٍّ الْكُوفِيِّ عَنْ عُثْمَانَ بْنِ عِيسَى عَنْ سَعِيدِ بْنِ يَسَارٍ عَنْ مَنْصُورِ بْنِ يُونُسَ عَنْ أَبِي عَبْدِ الله (عَلَيهِ السَّلام) قَالَ فِي حِكْمَةِ آلِ دَاوُدَ عَلَى الْعَاقِلِ أَنْ يَكُونَ عَارِفاً بِزَمَانِهِ مُقْبِلاً عَلَى شَأْنِهِ حَافِظاً لِلِسَانِهِ.
20. Abu Ali al-Ash’ari has narrated from al-Hassan ibn Ali al-Kufi from ‘Uthman ibn ‘Isa from Sa’id ibn Yasar from Mansur ibn Yunus from Abu ‘Abdillah  who has said the following: “It is in the wisdom of Ale (people of) Dawud: ‘A person of reason must learn about the nature of his time, pay attention to his affairs and safeguard his tongue.’” 