Musnad Ahmad 3212

It was narrated from Ibn 'Abbas (رضي الله عنه) from The Prophet (ﷺ) that he led them in praying eight rak'ahs at the time of a solar eclipse, in which he recited then bowed then raised his head; then he recited then bowed then raised his head; then he recited then bowed then raised his head; then he recited then bowed then raised his head, then he prostrated. He said: And the second rak'ah was the same.