In a separate inspection, the listener supposes both scales faulty; saying only the first was faulty exemplifies what?

Supplementary Practice 17: Market Inspection, Evidential Scope, and Rhetorical Precision

• Qaṣr al-ifrād: a supposed partner is excluded
• Qaṣr al-taʿyīn in every context
• Omission of circumstantial wāw
• Qaṣr al-qalb: the attribution was simply reversed