Al-Adab Al-Mufrad, Book 30, Hadith 577 (English) ⓘ

'Abda ibn Hazn said, "The people of camels and the people of sheep vied with one another for glory. The Prophet, may Allah bless him and grant him peace, said, 'Musa was sent, and he was a shepherd. Da'ud was sent, and he was a shepherd. I was sent, and I used to herd sheep for my people at Ajyad.'"

حَدَّثَنَا مُحَمَّدُ بْنُ بَشَّارٍ، قَالَ‏:‏ حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ، قَالَ‏:‏ حَدَّثَنَا شُعْبَةُ، سَمِعْتُ أَبَا إِسْحَاقَ، سَمِعْتُ عَبْدَةَ بْنَ حَزْنٍ يَقُولُ‏:‏ تَفَاخَرَ أَهْلُ الإِبِلِ وَأَصْحَابُ الشَّاءِ، فَقَالَ النَّبِيُّ صلى الله عليه وسلم‏:‏ بُعِثَ مُوسَى وَهُوَ رَاعِي غَنَمٍ، وَبُعِثَ دَاوُدُ وَهُوَ رَاعٍ، وَبُعِثْتُ أَنَا وَأَنَا أَرْعَى غَنَمًا لأَهْلِي بِأَجْيَادِ‏.‏