It wasnarrated that Malik bin Huwairith said:
"I came to the Prophet(ﷺ) with a friend of mine, and when we wanted to leave, he said tous: 'When the time for prayer comes, say the Adhan and Iqamah, thenlet the older of you lead the prayer.'" (FR)
English reference (FR): Vol. 1, Book 5, Hadith 979 (FR)
Arabic reference (FR): Book 5, Hadith 1032 (FR)