أَتُهْمِلُ وَاجِبَكَ؟ may express reproach rather than request information. The textbook marks a special interrogative-hamza construction for this.
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Recognize Rhetorical Force
The Two Interrogative Particles: Hamza and Hal
أَتُهْمِلُ وَاجِبَكَ؟ may express reproach rather than request information. The textbook marks a special interrogative-hamza construction for this.