When is it said: (Prayer is better than sleep)?

Q: Is the phrase (Prayer is better than sleep) said in the first adhan before Fajr? Or in the second adhan? What is the evidence for saying it? And what does one who hears it after the mu'adhdhin say?

A: The sunnah is that it is said in the final adhan after Fajr, as that came in the hadith of Abu Mazhura, and there is an indication in the hadith of Aisha that the mu'adhdhin used to say it in the final adhan after Fajr. She said: Then the Prophet (peace and blessings be upon him) would stand and pray the two rak'ahs, then go out for the prayer after the adhan, which is the final adhan relative to what is called the first adhan. It is the first adhan relative to the iqamah; because the iqamah is called the second adhan. So the sunnah is to use this phrase in the adhan called out after the appearance of Fajr, which is the final one relative to the adhan he calls out at the end of the night to wake the sleeper and return the one who is standing, and it is the first one relative to the iqamah, because it is a second adhan, as the Prophet (peace and blessings be upon him) said: The meaning of that is the adhan and the iqamah.
So when the mu'adhdhin says: (Prayer is better than sleep), the one who responds says the same: (Prayer is better than sleep), because of his saying (peace and blessings be upon him): It is agreed upon as authentic.
Except when the mu'adhdhin says: (Hasten to prayer, hasten to success), then the listener must say: (There is no power and no strength except by Allah), because that is established from the Prophet (peace and blessings be upon him) in the hadith of 'Umar ibn al-Khattab (may Allah be pleased with him), which Muslim included in his Sahih.