And the explanation of Allah the Exalted’s statement:“And when you call to prayer, they take it as mockery and play. That is because they are a people who do not understand.”And the statement of Allah the Exalted:“When the call is made for prayer on the day of Friday (then hasten to the remembrance of Allah).”

Narrated Anas: The people mentioned the fire and the bell (they suggested those as signals to indicate the starting of prayers), and by that they mentioned the Jews and the Christians. Then Bilal was ordered to pronounce Adhan for the prayer by saying its wordings twice, and for the Iqama (the call for the actual standing for the prayers in rows) by saying its wordings once. (Iqama is pronounced when the people are ready for the prayer).