Authentic
graded by Al-Albani
Mishkat al-Masabih 2300
Narrator:Abu Dharr
وَعَنْ أَبِي ذَرٍّ قَالَ: سُئِلَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ أَيُّ الْكَلَامِ أَفْضَلُ؟ قَالَ:
" 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.
Cited in Mishkat al-Masabih (No. 2300).