When the Messenger of Allah was with her on her day and night, and heard the Mu'adh-dhin calling the Adhan, she heard him saying what he said. (Using translation from Ibn Mājah 719)
أَنَّ رَسُولَ اللهِ ﷺ كَانَ إِذَا كَانَ عِنْدَهَا فِي يَوْمِهَا أَوْ لَيْلَتِهَا فَسَمِعَ الْمُؤَذِّنَ قَالَ كَمَا يَقُولُ الْمُؤَذِّنُ