Ever wonder why the Mu’adhin turns his face from right to left and left to right during Adhaan (while saying ‘hayya alas-Salah‘ and ‘hayya alal falah‘)? Because it is the way the first Mu’adhin of Islam, Bilal (RA), used to do it. And it is the way Prophet (SAW) taught him.
Narrated ‘Aun bin Abi Juhaifa:
My father said, “I saw Bilal turning his face from side to side while pronouncing the Adhaan for the prayer.”
I actually used to wonder if it’s a Sunnah or not. Now I have the answer Alhamdulillah. :)
Imaam Bukhari has done us such a wonderful favor by compiling his book that maybe even he himself did not realize the importance that it has today. May Allah grant him from the highest levels of Paradise and have mercy on him. Ameen.