Prayer (Kitab Al-Salat)
Dawud :: Book 2 : Hadith 524
Narrated Abdullah ibn Amr ibn al-'As:
A man said: Apostle of Allah, the mu'adhdhins excel us. The Apostle of Allah (peace_be_upon_him) said: Say (the same words) as they say, and when you come to the end, make a petition and that will be granted to you.