Aban ibn Uthman reported that Zayd ibn Thabit came from Marwan one afternoon. They presumed that he had not sent for him at that hour but to ask something. So, they met him and asked him and he confirmed, ‘Yes. He asked me about many things (ahadith) that I had heard form Allah’s Messenger (SAW) I heard Allah’s Messenger (SAW) say, May Allah keep him fresh (and radiant) who hears a hadith from me, remembers it if! he conveys it to others, for, many a scholar of fiqh may carry it to one more learned than him in fiqh and many a scholar of fiqh is not himself a faiqih (jurist).”
[Ahmed 21646,Abu Dawud 3660]Ibn Majah]