This hadith is about the importance of performing wudu before going to bed and reciting a prayer for protection from Allah. It was narrated by Al-Bara' bin 'Azib, who was one of the companions of Prophet Muhammad ﷺ. The prayer that is mentioned in this hadith is known as “The Bedtime Prayer” or “The Evening Supplication”, which includes words such as “Allahumma aslamtu nafsi ilaika, wa fawwadtu amri ilaika, wal-ja'tu zahri ilaika, raghbatan wa rahbatan ilaika” which translates to “O Allah! I have submitted myself to You. I have turned my face to You, entrusted my affairs to You and relied completely on You out of desire for and fear of You". By reciting this prayer every night before going to sleep, it will ensure that if one dies during the night they will die in the true religion. This hadith teaches us about the importance of having faith in God and relying on Him for protection against any harm or danger we may face in life. It also encourages us to be mindful when we go about our daily activities so that we can be prepared if something unexpected happens at any time.