Musnad Ahmad 28:155

Hashim ibn al-Qasim narrated to us, Abu Mu'awiyah—meaning Shayban—narrated to us, from Yahya ibn Abi Kathir, from Abu Salamah, from Abdullah ibn Amr ibn al-Aas, that he said: The sun eclipsed during the time of the Messenger of Allah, peace and blessings of Allah be upon him, and it was called out for the prayer: "Gathering." The Messenger of Allah, peace and blessings of Allah be upon him, bowed twice in one prostration, then he stood up and bowed twice in one prostration, then the sun cleared. She said: Aisha said: "I have never performed a prostration, nor have I performed a bowing, that was longer than it."