It Is Recommended To Have Two Mu'adhdhin In A Single Masjid Sahih Muslim 380 b

Sahih Muslim 380b
Arabic hadith text
وَحَدَّثَنَا ابْنُ نُمَيْرٍ، حَدَّثَنَا أَبِي، حَدَّثَنَا عُبَيْدُ اللَّهِ، حَدَّثَنَا الْقَاسِمُ، عَنْ عَائِشَةَ، مِثْلَهُ
Translation

This hadith has been narrated on the authority of 'A'isha by another chain of transmitters.