The Prophet (ﷺ) said: "If there is an eclipse of the sun or the moon, pray like the last obligatory prayer you did before that."
Sunan an-Nasa'i Book 16, Hadith 30
← Previous Hadith That there was an eclipse of the sun and the Prophet of Allah (ﷺ) prayed two rak'ahs until it ended. Then he said: "The sun and the moon do not become eclipsed for the death of anyone, but they are two of His creations. Allah, the Mighty and Sublime, causes whatever He wants to happen in His creation. If Allah (SWT), the Mighty and Sublime, manifests Himself to any of His creation, it humbles itself before Him, so if either of them (solar or lunar eclipse) happens, pray until it is over or until Allah causes something to happen."

Sunan an-Nasa'i Book 16, Hadith 29 Next Hadith → The Messenger of Allah (ﷺ) prayed when there was an eclipse of the sun like our prayer, bowing and prostrating.

Sunan an-Nasa'i Book 16, Hadith 31