Abu Da'ud أبو داود السجستاني الأزدي · The Book of Eclipses

Aishah said: "The sun was eclipsed during the lifetime of the Messenger of Allah (ﷺ) and it was called out: 'As-salatu jam'iah (prayer is about to begin in congregation).' So the people gathered and the Messenger of Allah (ﷺ) led them in prayer, bowing four times in two rak'ahs and prostrating four times."