Zayd ibn Thabit reported: The Messenger of Allah, peace and blessings be upon him, said, “May Allah brighten the face of a person who hears a tradition from us and he memorizes it until he can convey it to others. Perhaps he will convey it to one who understands better than him, and perhaps one who conveys knowledge does not understand it himself.”
Source: Sunan Abī Dāwūd 3660
Grade: Sahih (authentic) according to Al-Albani
عَنْ زَيْدِ بْنِ ثَابِتٍ قَالَ رسول الله صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ نَضَّرَ اللَّهُ امْرَأً سَمِعَ مِنَّا حَدِيثًا فَحَفِظَهُ حَتَّى يُبَلِّغَهُ فَرُبَّ حَامِلِ فِقْهٍ إِلَى مَنْ هُوَ أَفْقَهُ مِنْهُ وَرُبَّ حَامِلِ فِقْهٍ لَيْسَ بِفَقِيهٍ
3660 سنن أبي داود كتاب العلم باب فضل نشر العلم
3660 المحدث الألباني خلاصة حكم المحدث صحيح في صحيح أبي داود