The source also discusses a technical following case:
• if a follower, after sufficient recitation by the prayer leader, bows early;
• and the prayer leader then reaches the follower in Ruku before the follower rises;
• the rak'ah can be valid.
If the prayer leader does not catch the follower in that Ruku, the required following is not established for that act.
This is an advanced exception and should not be taught as permission to intentionally race ahead in congregational prayer.
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Fajr Sunnah, Joining the Congregation, and Catching a Rak'ah
The source also discusses a technical following case:
• if a follower, after sufficient recitation by the prayer leader, bows early;
• and the prayer leader then reaches the follower in Ruku before the follower rises;
• the rak'ah can be valid.
If the prayer leader does not catch the follower in that Ruku, the required following is not established for that act.
This is an advanced exception and should not be taught as permission to intentionally race ahead in congregational prayer.