Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) narrates: A man from the tribe of Banu Amir came to the service of the Prophet Muhammad (peace be upon him). That man used to give medicine and treat people. He said: O Muhammad (peace be upon him), you have some ideas—are you interested that I give you some medicine? (Meaning, if your mental state is not right, I will give you medicine for it.) The Prophet Muhammad (peace be upon him) invited that man towards Allah, then the Prophet Muhammad (peace be upon him) said: Are you interested that I show you a sign? At that time, there was a date-palm tree and another tree near that man. The Prophet Muhammad (peace be upon him) called the date-palm tree towards himself. It came towards the Prophet Muhammad (peace be upon him), sometimes prostrating, sometimes raising its head, sometimes prostrating, sometimes raising its head, and it reached the Prophet Muhammad (peace be upon him) and stood in front of him. Then the Prophet Muhammad (peace be upon him) said to it: Go back to your place. So the man from the tribe of Banu Amir said: By Allah! Now I will never consider you a liar in any matter that you state. Then that man said: O descendants of Amir bin Sa’sa’ah, by Allah! I will never deny any of his statements.
(Imam Ibn Hibban, may Allah have mercy on him, says:) The word "udhq" refers to a date-palm tree.