Does the one who does not recite al-Fatihah well, O Shaykh, have a valid prayer behind his imam in a private prayer?

The Shaykh : Yes, sound?

The questioner : May Allah forgive you, O Shaykh. The one who does not master al-Fatihah, O Shaykh?

The Shaykh : Yes.

The questioner : ... Should he seek a person to pray with him so that his prayer is valid, O Shaykh?

The Shaykh : According to the opinion of some scholars, it is valid. Those who hold that the imam's recitation serves as the recitation for the ma'mum (one praying behind the imam) consider their prayer valid.

The questioner : Is it obligatory for him to learn it at the same time?

The Shaykh : Yes, it is obligatory for him to learn it at the same time if possible. If time is tight, he should pray even if he does not recite it. Yes.

The questioner : ...

The Shaykh : What?

The questioner : Why did the Messenger (peace and blessings be upon him) not mention al-Fatihah in this hadith?

The Shaykh : Yes, he feared it would be too difficult for him, so he said: He feared it would be too difficult, and then after that, he must teach him. Yes, O 'Abd al-Wahhab?