Riyad as-Salihin: The Book of Miscellany – Hadith No. 1562 — Anas bin Malik (May Allah be pleased with him) reported: I set out along with… (Hadith No. 1562)

Anas bin Malik (May Allah be pleased with him) reported: I set out along with Jarir bin 'Abdullah Al-Bajali (May Allah be pleased with him) on a journey and he served me. I said to him: "Don't do that." Thereupon, he said, "I have seen the Ansar doing this with Messenger of Allah (ﷺ), and I swore by Allah, whenever I accompany anyone of the Ansar, I would serve him"..

Explanation:

Reference: Riyad as-Salihin, The Book of Miscellany, Hadith No. 1562