[Machine] The Prophet peace be upon him said to me and my fellow companion, "When you both go out, let one of you give the call to prayer and let the other one lead and make you both the imam (prayer leader), the one with the loudest voice among you."
قَالَ النَّبِيُّ ﷺ لِي وَلِصَاحِبٍ لِي «إِذَا خَرَجْتُمَا فَلْيُؤَذِّنْ أَحَدَكُمَا وَلْيَقُمْ وَلْيَؤُمَّكُمَا أَكْبَرُكُمَا»
"I came to the Prophet ﷺ with a cousin of mine" - on an another occasion he said: "with a companion of mine" - "and he said: 'When the two of you travel, call the Adhan and the Iqamah, and let the older of you lead the prayer.'" (Using translation from Nasāʾī 634)
أَتَيْتُ النَّبِيَّ ﷺ أَنَا وَصَاحِبٌ لِي فَقَالَ «إِذَا صَلَّيْتُمَا فَأَذِّنَا وَأَقِيمَا وَلْيَؤُمَّكُمَا أَكْبَرُكُمَا»