[Machine] That Muawiya sent a message to Daghfal and asked him about the Arabic language and about the genealogies of people, and he asked him about the stars. Daghfal, being knowledgeable, replied, "O Daghfal, from where did you learn this?" He said, "I learned this with a sharp tongue and a wise heart, and indeed forgetfulness is the affliction of knowledge." Muawiya said, "Go with Yazid and teach him the Arabic language and the genealogies of Quraysh and the stars."  

أَنَّ مُعَاوِيَةَ ؓ أَرْسَلَ إِلَى دَغْفَلٍ فَسَأَلَهُ عَنِ الْعَرَبِيَّةِ وَعَنْ أَنْسَابِ النَّاسِ وَسَأَلَهُ عَنِ النُّجُومِ فَإِذَا عَالِمٌ فَقَالَ يَا دَغْفَلُ مِنْ أَيْنَ حَفِظْتَ هَذَا؟ فَقَالَ «حَفِظْتُ هَذَا بِلِسَانٍ سَئُولٍ وَقَلْبٍ عَقُولٍ وَإِنَّ آفَةَ الْعِلْمِ النِّسْيَانُ» قَالَ فَاذْهَبْ بِيَزِيدَ فَعَلِّمْهُ الْعَرَبِيَّةَ وَأَنْسَابَ قُرَيْشٍ وَالنُّجُومَ