Be mindful when praying; Pay attention to your prayers; Perform your prayers according to Islamic teachings; Say Takbir after performing Taslim at the end of a prayer

This hadith highlights the importance of mindfulness and attention during prayer. The Prophet Muhammad (ﷺ) was asked if he had forgotten or reduced his prayer, to which he responded by asking if Dhul-Yadain spoke the truth. The people confirmed this, so he then stood up and completed his prayer with two more rak'ats. He performed Taslim, said Takbir, and performed two prostrations that were either longer than usual or similar to his usual prostrations. This shows us that we should be mindful when praying so that we do not forget any part of it or reduce it in any way. We should also pay attention to our prayers so that we can perform them properly according to Islamic teachings.