Is saying "Subhan Allah wa bihamdihi, 'adada khalqihi, wa rida nafsihi, wa zinata 'arshihi, wa midada kalimatihi" once sufficient in place of saying "Subhan Allah wa bihamdihi" one hundred times to attain the forgiveness mentioned in the hadith? And is saying "Subhan Allah wa bihamdihi" one hundred times sufficient as a single utterance?

One must stop at the evidence when determining the reward for adhkar (remembrances of God). For example, saying "Subhan Allah wa bihamdih, adada khalqih..." (Glory be to Allah and with His praise, as many times as the number of His creation...) does not suffice for repeating "Subhan Allah wa bihamdih" a hundred times to achieve the forgiveness mentioned in the hadith, because the specific number is intended. While the multiplied dhikr might have a greater reward, repeating the dhikr can instill spiritual meanings that are not achieved otherwise. These virtues may be specific to those whose hearts are present and who reflect on the meanings of the dhikr, and not for those who persist in sins.