LessonsAl-Mafʿūl Lahu: Expressing the Reason for an ActionQuiz

أَدَّبْتُهُ تَأْدِيبًا
Translation: I disciplined him—an act of disciplining.

أَدَّبْتُ: past verb; -tu is the subject.
هُ: direct-object pronoun.
تَأْدِيبًا: cognate verbal noun of أَدَّبَ, parsed as an absolute object in this reconstruction.

In the first source wording taʾdīban states the reason; in the al-Zajjāj reconstruction the verb and its verbal noun share a root.

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Parsing al-Zajjāj’s First Reconstruction

Al-Mafʿūl Lahu: Expressing the Reason for an Action

أَدَّبْتُهُ تَأْدِيبًا
Translation: I disciplined him—an act of disciplining.

أَدَّبْتُ: past verb; -tu is the subject.
هُ: direct-object pronoun.
تَأْدِيبًا: cognate verbal noun of أَدَّبَ, parsed as an absolute object in this reconstruction.

In the first source wording taʾdīban states the reason; in the al-Zajjāj reconstruction the verb and its verbal noun share a root.