Narrated Ubadah ibn as-Samit: We were behind the Messenger of Allah (ﷺ) at the dawn prayer, and he recited (the passage), but the recitation became difficult for him. Then when he finished, he said: Perhaps you recite behind your imam? We replied: Yes, it is so, Messenger of Allah. He said: Do not do so except when it is Fatihat al-Kitab, for he who does not recite it is not credited with having prayed

English translation · Sunan Abu Dawud