Anas (RAA) narrated that the Messenger of Allah (ﷺ) said:

“A supplication made between the Adhan and Iqamah is never rejected.” Related by An-Nasa’i and others, Ibn Hibban and others graded it as Sahih.

وَعَنْ أَنَسٍ ‏- رضى الله عنه ‏- قَالَ: قَالَ رَسُولُ اَللَّهِ ‏- صلى الله عليه وسلم ‏-{ اَلدُّعَاءُ بَيْنَ اَلْأَذَانِ وَالْإِقَامَةِ لَا يُرَدُّ } أَخْرَجَهُ النَّسَائِيُّ, وَغَيْرُهُ, وَصَحَّحَهُ اِبْنُ حِبَّانَ, وَغَيْرُهُ .‏ [1]‏ .‏