An omitted obligatory prayer remains due. Once recalled, postponing it without reason conflicts with the duty of makeup.
An exception arises when offering it first would cause the current obligatory prayer to lapse; the current prayer then takes priority.
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Making Up Missed Prayers: Obligation and Sequence
An omitted obligatory prayer remains due. Once recalled, postponing it without reason conflicts with the duty of makeup.
An exception arises when offering it first would cause the current obligatory prayer to lapse; the current prayer then takes priority.