Mishkat al-Masabih
Abu Huraira reported God’s messenger as saying, "Knowledge from which no benefit is derived is like a treasure from which nothing is expended in God’s path.” Darimi transmitted it.
وَعَنْ أَبِي هُرَيْرَةَ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «مَثَلُ عِلْمٍ لَا يُنْتَفَعُ بِهِ كَمَثَلِ كَنْزٍ لَا يُنْفَقُ مِنْهُ فِي سَبِيل الله» . رَوَاهُ الدَّارمِيّ
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