Dua to Say After Adhan - Always Accepted (Hadith)

Narrated by Abdullah ibn Amr ibn al-'As (RA): A man said: O Messenger of Allah, the mu'adhdhins excel us. The Messenger of Allah (ﷺ) said: Say (the same words) as they say, and when you come to the end, ask Allah for anything and that will be granted to you.