জামাতের নামাজে আল-ফাতিহা পাঠ করতে হবে কি?

If the follower caught up the standing up with the Imam and feared that the recitation will escape him, he leaves the du’a of opening and starts with the recitation, because it is a fard and one should not be diverted from it by the nafilah. If he recited some of the fatiha and the Imam bowed, he bows and leaves the recitation because following the Imam is more imperative. If he caught him (the Imam) while he is bowing, he makes the takbeer of ihram while standing then makes the takbeer of the bowing (rukuu) and bows. If he made the takbeer intending thereby that of ihram and of bowing then this does not suffice him for the fard, because he associated in the intention between a fard and nafilah, thus his prayer is not convened. If he caught the allowed bowing with the Imam, he has caught the rak’ah; but if he did not catch that, then he did not catch the rak’ah. Whenever he catches a rak’ah with the Imam, he has caught the prayer of jama’ah due to what was narrated from Abu Hurayrah (ra) who said: Rasool Allah (saw) said:

“When you come to the prayer and we are prostrating, then prostrate and do not count it as anything. And whoever catches a rak’ah has caught the prayer.” If he caught the last rak’ah with the Imam, then that is the first of his prayer due to what was narrated from ‘Ali (ra) that he said: «ما أدركت فهو أول صلاتك» “Whatever you caught is the first of your prayer.” Accordingly, once he (the Imam) said the salam, he (the follower) stands for what remains of his prayer. If that were in a prayer wherein there is a qunut and he made the qunut with the Imam, he repeats the qunut at the end of his prayer. It is necessary for the follower to follow the Imam and not to precede him in any action due to what Abu Hurayrah narrated that the Prophet (saw) said:

“Verily the Imam was made to be followed, so do not disagree with him. When he says the takbeer, you say the takbeer and when he bows, you bow. When he says: ‘Sami’ Allahu liman hamidahu (Allah hears the one who praises Him)’, you say: ‘Allahumma rabbana laka al-hamd (O Allah, our Lord, to you is the praise)’ and when he prostrates, you prostrate.” If the Imam forgets in his prayer, if it were in recitation the follower would reveal it for the Imam due to what Anas narrated and said:

“The Sahabah of Rasool Allah (saw) would instruct each other in the prayer.” If it were in something quoted other than the recitation, the follower would say it aloud so that he hears it. If he forgets in an action, he says: ‘Subhana’Allah (Glory be to Allah)’ to inform him. If a follower intends to separate from the Imam and complete (the prayer) alone, it is permitted whether that were with an excuse or not

“because Mu’adh lengthened the recitation so a Bedouin isolated himself from him. That was mentioned to the Prophet (saw) and he did not reject that.