Ubada bin Samit reported,

We were behind the Messenger of Allah ﷺ in the dawn prayer, and the Messenger of Allah ﷺ recited, but the recitation became difficult for him. When he finished, he asked, "Are you perhaps reciting behind your imam?"We answered, "Yes, we do, Messenger of Allah."He said, "Do not do so, except for the Opening of the Book, for there is no prayer for one who does not recite it."

Azami 1964

Hasan

عن عبادة بن الصامت قال

كنا خلف رسول الله ﷺ في صلاة الفجر، فقرأ رسول الله ﷺ فثقلت عليه القراءة فلما فرغ قال: لعلكم تقرأون خلف إمامكم قلنا: نعم هذا يا رسول الله، قال: لا تفعلوا إلا بفاتحة الكتاب، فإنه لا صلاة لمن لم يقرأ بها.

الأعظمي 1964حسن
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Prayer
Chapter
Description of prayer, the takbir, standing, and recitation
Section
Obligation of reciting Surah Fatihah
Numbering
Jami al-Kamil 1964 (2nd edition)
Azami 1964