أَوْ مُشَابِهًا لَهَا، نَحْوُ: «لَا عِشْرِينَ دِرْهَمًا فِي الْكِيسِ».
Translation: Or the noun resembles a construct expression, as in: There are not twenty dirhams in the pouch.
The author gives «لَا عِشْرِينَ دِرْهَمًا فِي الْكِيسِ» for the quasi-construct type.
ʿIshrīna needs the following specification “dirhams”; that following noun is an accusative tamyīz, not a genitive muḍāf ilayh.
ʿIshrīna is the noun of lā, accusative with yāʾ.