The Messenger of Allah (ﷺ) prayed when the sun was eclipsed, bowing eight times and prostrating four times.
Sunan an-Nasa'i Book 16, Hadith 9
← Previous Hadith "The sun was eclipsed during the life of the Prophet (ﷺ). The Messenger of Allah (ﷺ) went out to the masjid and stood and said the takbir, and the people formed rows behind him. He bowed four times and prostrated four times, and the eclipse ended before he finished."

Sunan an-Nasa'i Book 16, Hadith 8 Next Hadith → The Prophet (ﷺ) prayed when there was an eclipse. He recited then he bowed, then he recited then he bowed, then he recited then he bowed, then he recited then he bowed, then he prostrated, and he did the second rak'ahs in same fashion.

Sunan an-Nasa'i Book 16, Hadith 10