عَبْدًا إِذَا صَلَّىٰٓ ١٠
Sentence structure
عَبْدًا is the object of يَنْهَىٰ from the preceding ayah. إِذَا صَلَّىٰٓ is a temporal clause.
Ayah summary
He prevents a servant of Allah from praying.
عَبْدًا — a servant
Grammar: An indefinite masculine accusative object of preceding يَنْهَىٰ.
إِذَا — when
Grammar: A temporal adverb introducing its clause.
صَلَّىٰٓ — he prays
Grammar: A Form II third-person masculine-singular perfect with understood subject.