It was narrated from Abu Hurairah that the Messenger of Allah (ﷺ) said:
"Allah has not sent any Prophet but he was a shepherd." His Companions said to him: "Even you, O Messenger of Allah?" He said: "Even me I used to tend the sheep of the people of Makkah for a few Qirats." (Sahih)(One of the narrators) Suwaid said: " Meaning one Qirat for every sheep."
English reference: Vol. 3, Book 12, Hadith 2149
Arabic reference: Book 12, Hadith 2232