Musannaf Ibn Abi Shaybah 14676 — How shepherds should stone

Sayyiduna Ibn Umar (may Allah be pleased with them both) used to arrange the stoning of the Jamarat in turns among the camel herdsmen. He would order those who were with him, and they would perform the stoning when the sun had passed its zenith; then they would go to the camels, and those who were with the camels would come and perform the stoning, then they would stay until they performed the stoning the next day after the sun had passed its zenith.