Sahih Bukhari

Narrated Ibn `Umar:The Prophet (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. The others then asked, ""Please inform us what is that tree, O Allah's Messenger (ﷺ)?"" He replied, ""It is the date-palm tree