" مَا اصْطَفَى اللَّهُ لِمَلَائِكَتِهِ: سُبْحَانَ اللَّهِ وَبِحَمْدِهِ "
Abu Dharr said that God’s messenger was asked what words were most excellent and replied, “What God has chosen for His angles: Glory be to God and I begin with praise of Him.” Muslim transmitted it.