وَيَخْتَصُّ بِجَمْعِ الْمُذَكَّرِ السَّالِمِ، نَحْوَ مُسْلِمُونَ وَأُولُو، وَعِشْرُونَ مَعَ أَخَوَاتِهَا.
Translation: This rule applies to the sound masculine plural, such as «مُسْلِمُونَ», and also to «أُولُو» and «عِشْرُونَ» along with its related multiples of ten.
Three groups: 1. Sound masculine plurals such as مُسْلِمُونَ; 2. multiples of ten from 20 to 90; 3. أُولُو / أُولِي.