If both Minchah and Mussaf are due at the same time, which should be prayed first?

ShabbatPrayerMussaf

Synopsis

When Mussaf has been delayed until the time for Minchah (from 6.5 hours after sunrise), Minchah is prayed first because it is tedir (more frequent). B'dieved, if Mussaf was prayed first the obligation is fulfilled. The Tosafot add that this applies only when one needs to pray both immediately (e.g., to eat); if not pressed, Mussaf may be prayed first.

Rishonim
Early Acharonim
Late Acharonim
Lenient
Strict
Lesser cited
Major authority

Discussion

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