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