فَذَلِكَ خَمْسَةٌ وَعِشْرُونَ، الْحَاصِلُ مِنْ ضَرْبِ خَمْسَةٍ فِي خَمْسَةٍ.
Translation: Five form groups combined with five addressee groups yield 25 patterns.
This is the author’s combinatorial rule, not a complete paradigm on this slide. Selected illustrations: «ذَاكَ، ذَاكِ، ذَاكُمَا، ذَاكُمْ، ذَاكُنَّ». Address marking changes while the core pointing function remains.