4. The Imam must not be in a legally lower prayer-state than the follower — for example, a Nafl worshipper does not lead a Fard follower, and an excused Imam does not lead a non-excused follower in the case described by the rule.
5. The Imam must not be performing a different Fard from the follower.
6. In the technical Qada case stated by the text, a resident is not followed by a traveler after the time has expired in a four-rak'ah prayer, because the traveler's fixed Fard obligation remains two rak'ahs.
7. A Masbuq — someone who joined late and is completing missed rak'ahs — may not become Imam for another person during that completion.
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Conditions 4–7: The Imam's Prayer Must Match the Follower's Legal State
Following the Imam: The 14 Conditions of Valid Iqtida and Row Formation
4. The Imam must not be in a legally lower prayer-state than the follower — for example, a Nafl worshipper does not lead a Fard follower, and an excused Imam does not lead a non-excused follower in the case described by the rule.
5. The Imam must not be performing a different Fard from the follower.
6. In the technical Qada case stated by the text, a resident is not followed by a traveler after the time has expired in a four-rak'ah prayer, because the traveler's fixed Fard obligation remains two rak'ahs.
7. A Masbuq — someone who joined late and is completing missed rak'ahs — may not become Imam for another person during that completion.