زَيْدًا ضَرَبْتُهُ
Translation: Zayd—I struck him.
زَيْدًا: accusative object of an omitted preceding verb, reconstructed as “ḍarabtu”.
ضَرَبْتُ: spoken past verb with first-person subject pronoun.
هُ: attached accusative object pronoun referring back to Zayd.
The later visible verb is occupied by the resumptive pronoun, yielding the ishtighāl construction.