وَ سَأَلَ سَعْدُ بْنُ سَعْدٍ اَلرِّضَا عَلَيْهِ اَلسَّلاَمُ: عَنْ سَجْدَةِ اَلشُّكْرِ فَقَالَ أَرَى أَصْحَابَنَا يَسْجُدُونَ بَعْدَ اَلْفَرِيضَةِ سَجْدَةً وَاحِدَةً وَ يَقُولُونَ هِيَ سَجْدَةُ اَلشُّكْرِ فَقَالَ «إِنَّمَا اَلشُّكْرُ إِذَا أَنْعَمَ اَللَّهُ عَلَى عَبْدِهِ أَنْ يَقُولَ «سُبْحٰانَ اَلَّذِي سَخَّرَ لَنٰا هٰذٰا وَ مٰا كُنّٰا لَهُ مُقْرِنِينَ `وَ إِنّٰا إِلىٰ رَبِّنٰا لَمُنْقَلِبُونَ» «وَ اَلْحَمْدُ لِلّٰهِ رَبِّ اَلْعٰالَمِينَ».
Sa'd ibn Sa'd asked Imam al-Ridha (a.s) about the prostration of gratitude (Sajdat al-Shukr). He said: “I see our companions prostrate once after the obligatory prayer and say that it is the prostration of gratitude.” Imam (a.s) replied: “Gratitude is when Allah (swt) bestows a blessing upon His servant, and the servant says, ‘Glory be to the One who has subjected this to us, for we were not capable of it, and indeed to our Lord (azj), we will return. And all praise is due to Allah (swt), the Lord (azj) of the worlds.’”