The closing verse compares ẓulm dhawī al-qurbā, injustice by close kin, with waqʿ al-ḥusām al-muhannad, the strike of a sharp sword, in intensity of pain. The comparative ashaddu maḍāḍatan ... min ranks the emotional wound above the physical one.
ElementExplanation
SubjectInjustice inflicted by relatives
Concrete imageThe blow of a sharp sword
Basis of comparisonIntensity of suffering
Rhetorical effectMaking emotional injury more vivid than bodily injury
The force comes from expectations of care being violated by the people closest to the speaker.