Musnad Ahmad 30:915

Abu Amir narrated to us, Ibn Abi Dhi'b narrated to us, from al-Harith, from Muhammad ibn Abd al-Rahman ibn Thawban, from Abu Hurairah, that the Prophet (peace and blessings of Allah be upon him) recited [Surah] an-Najm, then he prostrated, and the people prostrated with him, except for two men who sought fame.