Pray a raka and make two prostrations from the sitting position before taslim when uncertain in your prayer

This hadith is about prayer and how to handle uncertainty during it. The Prophet Muhammad ﷺ taught us that if we are uncertain in our prayer whether we have prayed three or four rakahs, then we should pray a raka and make two prostrations from the sitting position before the taslim. This is done so that if it was the fourth raka then it will be made even by these two sajdas. Additionally, this action also spites Shaytan as he does not want us to complete our prayers properly. Therefore this hadith teaches us about being mindful of our prayers as well as how important it is for us to spite Shaytan by doing good deeds such as praying properly with certainty.