[Machine] The Prophet ﷺ used to say between the two prostrations "O Lord, forgive me." So it was said to Abdullah, "Do you say this?" He said, "Perhaps I say it, and perhaps I remain silent."  

أَنَّ النَّبِيَّ ﷺ كَانَ يَقُولُ بَيْنَ السَّجْدَتَيْنِ «رَبِّ اغْفِرْ لِي» فَقِيلَ لِعَبْدِ اللَّهِ تَقُولُ هَذَا؟ قَالَ رُبَّمَا قُلْتُ وَرُبَّمَا سَكَتُّ