We used to observe (Jumu'a) prayer with the Messenger of Allah (ﷺ) and then we returned and gave rest to our camels used for carrying water. Hassan[ (one of the narrators) said: I asked Ja'far what time that was. He said.. It is the time when the sun passes the meridian.
Sahih Muslim Book 7, Hadith 39
← Previous Hadith He who performed ablution well, then came to Friday prayer, listened (to the sermon), kept silence all (his sins) between that time and the next Friday would be forgiven with three days extra, and he who touched pebbles caused an interruption.

Sahih Muslim Book 7, Hadith 38 Next Hadith → that he asked Jabir b. 'Abdullah when the Messenger of Allah (ﷺ) observed Jumu'a prayer. He said: He used to observe prayer, and we then went (back) to our camels and gave them rest. 'Abdullah made this addition in his narration: "Till the sun passed the meridian. and the camels used for carrying water (took rest)."

Sahih Muslim Book 7, Hadith 40