Allah's Messenger (ﷺ) said, "Inform me of a tree which resembles a Muslim, giving its fruits at every season
by the permission of its Lord, and the leaves of which do not fall." I thought of the date-palm tree, but
I disliked to speak because Abu Bakr and `Umar were present there. When nobody spoke, the Prophet (ﷺ)
said, "It is the date-palm tree" When I came out with my father, I said, "O father! It came to my mind
that it was the date-palm tree." He said, "What prevented you from saying it?" Had you said it, it
would have been more dearer to me than such-and-such a thing (fortune)." I said, "Nothing prevented
me but the fact that neither you nor Abu Bakr spoke, so I disliked to speak (in your presence).
Sahih al-Bukhari Book 78, Hadith 170