The Prophet (ﷺ) said, "The example of a believer is like a green tree, the leaves of which do not fall." The
people said. "It is such-and-such tree: It is such-and-such tree." I intended to say that it was the
datepalm tree, but I was a young boy and felt shy (to answer). The Prophet (ﷺ) said, "It is the date-palm
tree." Ibn `Umar added, " I told that to `Umar who said, 'Had you said it, I would have preferred it to
such-and such a thing."
Sahih al-Bukhari Book 78, Hadith 149