Sufyan bin Uyaynah (may Allah have mercy on him) says that the Prophet (peace and blessings be upon him) said: "The angels record people's arrival in order, and when the imam sits down, they roll up their scrolls and listen attentively to the Friday sermon." Then he also mentioned (the reward for) the one who comes early to the prayer.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الجمعة / 5861