Mishkat al-Masabih 11 Business Transactions كتاب البيوع 217

وَعَنْ أَبِي هُرَيْرَةَ عَنِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ: «مَا بَعَثَ اللَّهُ نَبِيًّا إِلَّا رَعَى الْغَنَمَ» . فَقَالَ أَصْحَابُهُ: وَأَنْتَ؟ فَقَالَ: «نَعَمْ كُنْتُ أَرْعَى عَلَى قَرَارِيطَ لِأَهْلِ مَكَّةَ» . رَوَاهُ البُخَارِيّ

Abu Huraira reported the Prophet as saying, “God has not sent a prophet who did not work as a shepherd.” His companions asked whether this was also true of him and he replied, “Yes, I used to be a shepherd for the people of Mecca for a payment of some qirats.” Bukhari transmitted it.