أَخْبَرَنَا يَعْلَى ، حَدَّثَنَا مُحَمَّدٌ هُوَ ابْنُ إِسْحَاق ، عَنْ مُوسَى بْنِ يَسَارٍ عَمِّهِ، قَالَ : بَلَغَنِي أَنَّ سَلْمَانَ رَضِيَ اللهُ عَنْهُ، كَتَبَ إِلَى أَبِي الدَّرْدَاءِ رَضِيَ اللهُ عَنْهُ :" إِنَّ الْعِلْمَ كَالْيَنَابِيعِ يَغْشَاهُنَّ النَّاسُ، فَيَخْتَلِجُهُ هَذَا وَهَذَا، فَيَنْفَعُ اللَّهُ بِهِ غَيْرَ وَاحِدٍ، وَإِنَّ حِكْمَةً لَا يُتَكَلَّمُ بِهَا كَجَسَدٍ لَا رُوحَ فِيهِ، وَإِنَّ عِلْمًا لَا يُخْرَجُ كَكَنْزٍ لَا يُنْفَقُ مِنْهُ، وَإِنَّمَا مَثَلُ الْعَالِمِ كَمَثَلِ رَجُلٍ حَمَلَ سِرَاجًا فِي طَرِيقٍ مُظْلِمٍ يَسْتَضِيءُ بِهِ مَنْ مَرَّ بِهِ، وَكُلٌّ يَدْعُو لَهُ بِالْخَيْرِ "

Ya’la told us, Muhammad, who is Ibn Ishaq, told us, on the authority of Musa bin Yasar, his uncle, who said: I was informed that Salman, may God be pleased with him, wrote to Abu al-Darda’, may God be pleased with him, said: “Knowledge is like springs, people overflow with them, and this and that mix them, and God benefits more than one person through them. Wisdom that is not spoken is like a body without a soul, and knowledge that is not brought forth is like a treasure that is not spent, but rather the likeness of a scholar is like a man who has carried “A lamp on a dark path, illuminating whoever passes by it, and everyone prays for good for him.”