In a four-rakah prayer the number of groups stays two, but the imam shares two units with each rather than one.
Imam: 2 + 2 = 4. First group: two with imam plus two later. Second group: two with imam plus two later. Neither group omits an obligatory rakah.
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Salat al-Khawf: Congregational Prayer and Worship under Threat
In a four-rakah prayer the number of groups stays two, but the imam shares two units with each rather than one.
Imam: 2 + 2 = 4. First group: two with imam plus two later. Second group: two with imam plus two later. Neither group omits an obligatory rakah.