Ask for permission before entering someone else's home ; Respect others' wishes ; Follow an Imam during prayer ; Finish prayer with Taslim .

This hadith is about the Prophet's practice of asking permission before entering someone's home, as well as his practice of praying in houses when given permission to do so. It also shows that it is important to align behind him when he prays, and that we should finish our prayers with Taslim. This teaches us that we should always ask for permission before entering someone else's home, respect their wishes if they allow us to pray there, align behind the Imam when praying together, and finish our prayers with Taslim.