How many times chest expanding occurred?

Commenting on Surah Alam Nashrah, Maulana Shah ‘Abdul ‘Azeez Sahib Muhaddis Dihlvi رَحْمَةُ اللهِ تَعَالٰی عَلَيْه stated: The blessed chest of the Holy Nabi صَلَّی اللّٰہُ تَعَالٰی عَلَیْہِ وَاٰلِہٖ وَسَلَّم was cut open four times and was filled with treasure of Noor and Hikmah.
It occurred first time when he صَلَّی اللّٰہُ تَعَالٰی عَلَیْہِ وَاٰلِہٖ وَسَلَّم was being brought up by Haleemah Sa’diyyah رَضِیَ اللهُ تَعَالٰی عَنْهَا, as it has already been mentioned. It was aimed at protecting him from the whispers and thoughts that make children indulge in games and mischievous activities. The second time, his blessed chest was cut open at the age of ten years so that he would remain unaffected and unharmed by the risks of youthful desires. The third time, his blessed chest was cut open in the Hira cave where his blessed heart was filled with Noor and peace so that he صَلَّی اللّٰہُ تَعَالٰی عَلَیْہِ وَاٰلِہٖ وَسَلَّم could bear the great burden of revelation from the Almighty. The fourth time, his blessed chest was cut open on the night of Ascension [i.e. Mi’raaj] when his heart was filled with treasure of Noor and Hikmah so that he صَلَّی اللّٰہُ تَعَالٰی عَلَیْہِ وَاٰلِہٖ وَسَلَّم could behold the Almighty and listen to the Divine Word.