The ruling on not completing the recitation of al-Fatihah behind the imam in the quiet prayers

Question:
What is the ruling on not completing the recitation of al-Fatihah behind the imam in the quiet prayers, due to the imam’s speed in reciting, and what is the ruling on praying behind such an imam?

Answer:
The Messenger (peace and blessings be upon him) said: So the one praying behind the imam must follow the imam and bow with him, even if he has not completed al-Fatihah. This is from the perspective of the one praying behind the imam: he follows the imam. It is obligatory for the imam to enable the people to perform the prayer in the required manner, including the recitation of al-Fatihah and tranquility in standing, bowing, prostrating, and rising, because he is a trustee and a guarantor. He must enable those praying behind him to perform the obligatory acts or pillars of their prayer, without rushing them or lightening it in a way that invalidates it. Yes.