Knowledge
Bukhari :: Book 1 :: Volume 3 :: Hadith 72
Narrated Ibn 'Umar:
We were with the Prophet and a spadix of date-palm tree was brought to him. On that he said, "Amongst the trees, there is a tree which resembles a Muslim." I wanted to say that it was the date-palm tree but as I was the youngest of all (of them) I kept quiet. And then the Prophet said, "It is the date-palm tree."