Sahih Muslim

Sahih Muslim 1858 b

It is recommended for the army to swear allegiance to the ruler when intending to fight, and an account of Bay'at Ar-Ridwan beneath the tree
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Sahih Muslim 1858b
Arabic hadith text
وَحَدَّثَنَاهُ يَحْيَى بْنُ يَحْيَى، أَخْبَرَنَا خَالِدُ بْنُ عَبْدِ اللَّهِ، عَنْ يُونُسَ، بِهَذَا الإِسْنَادِ
Translation

This hadith has been narrated on the authority of Yunus with the same chain of transmitters.