What is a shared effect but differing mechanism of rabba hādhā l-bayt and alladhīna hum...?

Supplementary Practice 21: Comparative Rhetorical Study of Sūrat Quraysh and al-Māʿūn

• Classify both as the same demonstrative construction
• Say both create unbounded generality without specification
• Both specify; one does so by deixis and the other by a relative description
• Deny that a relative description can specify a class