Malik bin Huwairith Abu Sulaiman reported: I came to the Messenger of Allah (ﷺ) along with other persons and we were young men of nearly equal age, and the rest of the hadith was transmitted like the hadith narrated before.
Shaykh Maulana Abdul Aziz Alvi
Hadith Commentary:Benefits and Issues: Even during travel, one should make arrangements for the call to prayer (adhan) and congregational prayer (jama‘ah). It is not a condition for the mu’adhdhin (caller to prayer) to be the most virtuous and superior; however, the one most deserving of leading the prayer (imamah) is indeed the one who is superior and better. When arriving, all companions would come together, and when departing, these two companions were the last to bid farewell to you, sallallahu alayhi wa sallam. Therefore, you, sallallahu alayhi wa sallam, gave them special instructions.
Source: Tuhfat al-Muslim: Commentary on Sahih Muslim, Page: 1538