Sahih Bukhari

Narrated `Abdullah bin `Umar:Once Allah's Messenger (ﷺ) said, ""Amongst the trees there is a tree, the leaves of which do not fall and is like a Muslim, tell me the name of that tree."" Everybody started thinking about the trees of the desert areas and I thought of the date-palm tree but felt shy (to answer). The others asked, ""O Allah's Apostle! inform us of it."" He replied, ""It is the date-palm tree."" I told my father what had come to my mind and on that he said, ""Had you said it I would have preferred it to such and such a thing that I might possess