Abdullah bin Umar (may Allah be pleased with him) narrates: One day the Prophet Muhammad (peace be upon him) said to his companions: Tell me about a tree whose example is like that of a believing servant. The narrator says: People began discussing various trees of the forest. Abdullah (may Allah be pleased with him) says: It occurred to me that it could be the date palm tree. At first, I was about to say this, but when I considered the ages of those present, I did not have the courage to speak. No one could answer this question, so the Prophet Muhammad (peace be upon him) said: It is the date palm tree.
Hadith Referenceصحیح ابن حبان / كتاب الإيمان / 245
Hadith Gradingفضيلة الشيخ الإمام محمد ناصر الدين الألبانيصحيح - انظر ما قبله.فضيلة الشيخ العلّامة شُعيب الأرناؤوطإسناده صحيح على شرط مسلم. أبو كامل الجحدري: هو فضيل بن حسين، وأبو الخليل: هو صالح بن أبي مريم.