Repeat what the Mu’adhdhin says when you hear a call for prayer .

This hadith is about responding to the call for prayer, which is known as Adhan in Arabic. The Prophet Muhammad (S.A.W) instructed his followers to repeat what the Mu'adhdhin says when they hear it, which is a reminder that Allah is great and that it's time for prayer. This hadith teaches us that we should be obedient and follow instructions from those who are in authority over us, such as religious leaders or teachers, and also reminds us of our duty towards Allah by praying regularly at its designated times throughout each day. It also encourages us to be mindful of our actions and words so that we can stay connected with Allah through prayer and worship Him properly according to His commands.