The book gives أَفْتَرَىٰ عَلَى اللَّهِ, أَصْطَفَى الْبَنَاتِ and أَسْتَكْبَرْتَ for this type of omission. The interrogative hamzah remains; the following verbal waṣl does not sound independently.
Practice by separating the interrogative prefix from the verb. Identify which hamzah drops: not the interrogative one, but the following waṣl.
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Three examples of omission
Rules of Hamzah — Taḥqīq, Tashīl, Ibdāl and Hamzat al-Waṣl
The book gives أَفْتَرَىٰ عَلَى اللَّهِ, أَصْطَفَى الْبَنَاتِ and أَسْتَكْبَرْتَ for this type of omission. The interrogative hamzah remains; the following verbal waṣl does not sound independently.
Practice by separating the interrogative prefix from the verb. Identify which hamzah drops: not the interrogative one, but the following waṣl.