What is meant by the break of dawn? Is it the time for the beginning of the call to prayer (adhan) or the iqama (call to commence prayer), or the time of sunrise?

The appearance of dawn mentioned in the verse, "Peace it is until the emergence of dawn," is the time of its rising, and when the time for Fajr prayer begins with the emergence of the true dawn. Some interpreted it as the angels greeting the people in the mosques on Laylat al-Qadr until dawn appears, and that it extends from sunset until the emergence of dawn.