Respect for different ways of praying; Understand that there are many paths to reach God; Validity in different forms of worshiping God

This hadith speaks about how four caliphs, Abu Bakr, Umar, Uthman and Ali did not recite "In the name of Allah, the Merciful, the Compassionate" when they began their prayer. This shows us that even though it is a common practice to recite this phrase before beginning prayer today, it was not necessarily done by all in earlier times. It also teaches us that there are different ways to pray and still be considered as valid. We can learn from this hadith that we should respect different ways of praying and understand that there are many paths to reach God.