After the prayer:
• سُبْحَانَ الله — 33 times;
• الْحَمْدُ لِلَّه — 33 times;
• اللهُ أَكْبَر — 33 times.
These make 99. The hundredth is completed by the formula: لَا إِلٰهَ إِلَّا اللهُ وَحْدَهُ لَا شَرِيكَ لَهُ، لَهُ الْمُلْكُ وَلَهُ الْحَمْدُ وَهُوَ عَلَى كُلِّ شَيْءٍ قَدِيرٌ.
The source does not name this sequence here as 'Tasbih of Fatimah'; the revised level simply uses the wording and count actually presented in this chapter.