When I went to iMuslim course called Hadith 40 Imam Nawawi couple of months ago, I learned about the above hadith. It was Hadith no 15 but it made a huge impact on me. Truthfully, we are all very forgetful on things we do and at times, we are unaware of our actions, neither by speaking nor anything else.
But anything coming out from our mouth unfortunately can’t be taken back. Things which have been said can’t be undone.
Therefore, choose your words wisely or else, just be silent.