Shama-il Tirmidhi Chapter 035, Hadith Number 004 (228).

Anas ibn Malik radiyallahu anhu relates that a person requested Rasoolullah sallallahu alaihe wasallam that he be given a conveyance. Rasoolullah sallallahu alaihe wasallam replied, The baby of a camel shall be given to you.

The person said, What shall I do with the baby of a camel O’ Messenger of Allah? (I want one for a conveyance). Rasoolullah sallallahu alaihe wasallam replied, Every camel is the baby of a camel.

Commentary
The person thought that he would be given a small camel which is unfit for riding. In this hadith besides joking, it also points to the fact that a person should carefully listen and understand what the other person is saying.