Allamah Majlisi (r.a) reported in Biharil Anwar quoting from Da'watu Rrawandi that after the glorification of the infallible ones (a.s) then comes the glorification of the leader of the time (may our souls be sacrifice for him) to be read from 18th to the end of every month.
سُبْحَانَ اللهِ عَدَدَ خَلْقِهِ، سُبْحَانَ اللهِ رِضٰى نَفْسِهِ، سُبْحَانَ اللهِ مِدَادَ كَلِمَاتِهِ، سُبْحَانَ [اللهِ] زِنَةَ عَرْشِهِ، وَالْحَمْدُ لِلّٰهِ مِثْلَ ذٰلِكَ۔