Jami` at-Tirmidhi 561

Aishah narrated:"The sun was eclipsed during the time of the Messenger of Allah, so the Messenger of Allah led the people in prayer. He recited a lengthy recitation, then he bowed a lengthy bowing, then he raised his head and recited a lengthy recitation that was less than the first. Then he bowed a lengthy bowing that was less than the first. Then he raised his head and prostrated. Then he did (similar to) that in the second Rak'ah