It was narrated that Anas bin Malik said: "The Messenger of Allah (ﷺ) said: 'May Allah cause to flourish a slave (of His) who hears my words and understands them, then he conveys them from me. There are those who have knowledge but no understanding, and there may be those who convey knowledge to those who may have more understanding of it than they do.'"
Source: sunnah.com
Other translations
Arabic
حَدَّثَنَا مُحَمَّدُ بْنُ إِبْرَاهِيمَ الدِّمَشْقِيُّ، حَدَّثَنَا مُبَشِّرُ بْنُ إِسْمَاعِيلَ الْحَلَبِيُّ، عَنْ مُعَانِ بْنِ رِفَاعَةَ، عَنْ عَبْدِ الْوَهَّابِ بْنِ بُخْتٍ الْمَكِّيِّ، عَنْ أَنَسِ بْنِ مَالِكٍ، قَالَ قَالَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ " نَضَّرَ اللَّهُ عَبْدًا سَمِعَ مَقَالَتِي فَوَعَاهَا ثُمَّ بَلَّغَهَا عَنِّي فَرُبَّ حَامِلِ فِقْهٍ غَيْرِ فَقِيهٍ وَرُبَّ حَامِلِ فِقْهٍ إِلَى مَنْ هُوَ أَفْقَهُ مِنْهُ " .
sunnah.com