[Machine] The adhan during the time of the Messenger of Allah ﷺ was said in pairs, and the iqamah was said once, except that the caller, when saying, "Prayer is about to begin," would say it twice.
كَانَ الْأَذَانُ عَلَى عَهْدِ رَسُولِ اللهِ ﷺ مَثْنَى مَثْنَى وَالْإِقَامَةُ مَرَّةً مَرَّةً غَيْرَ أَنَّ الْمُؤَذِّنَ إِذَا قَالَ قَدْ قَامَتِ الصَّلَاةُ قَالَ مَرَّتَيْنِ