Mishkat al-Masabih 2322
Ibn ‘Umar said:
"Glory be to God" is the prayer of the creatures; "Praise be to God" is the word of thanksgiving; "There is no god but God" is the sentence which declares belief in God’s unity; and "God is most great" fills the space between heaven and earth. When a servant says, "There is no might and no power except in God", God says, "He has resigned and submitted himself to me." 

Razin transmitted it.
وَعَن ابْن عمر أَنَّهُ قَالَ: سُبْحَانَ اللَّهِ هِيَ صَلَاةُ الْخَلَائِقِ وَالْحَمْدُ لِلَّهِ كَلِمَةُ الشُّكْرِ وَلَا إِلَهَ إِلَّا اللَّهُ كَلِمَةُ الْإِخْلَاصِ وَاللَّهُ أَكْبَرُ تَمْلَأُ مَا بَيْنَ السَّمَاءِ وَالْأَرْضِ وَإِذَا قَالَ الْعَبْدُ: لَا حَوْلَ وَلَا قُوَّةَ إِلَّا بِاللَّهِ قَالَ اللَّهُ تَعَالَى: أسلم عَبدِي واستَسلَم. رَوَاهُ رزين