عَنْ أَبِي هُرَيْرَةَ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «الْإِمَامُ ضَامِنٌ وَالْمُؤَذِّنُ مؤتمن الله أَرْشِدِ الْأَئِمَّةَ وَاغْفِرْ لِلْمُؤَذِّنِينَ» . رَوَاهُ أَحْمَدُ وَأَبُو دَاوُدَ وَالتِّرْمِذِيُّ وَالشَّافِعِيُّ وَفِي أُخْرَى لَهُ بِلَفْظِ المصابيح

Umm Salama said

God’s Messenger taught me to say when the adhan for the sunset prayer was called, “O God, this is the time when Thy night comes on, Thy day retires, and the voices of Thy summoners are heard, so forgive me.” Abu Dawud transmitted it, as did Baihaqi in ad-Da'awat al-kabir.