Keep your promises and agreements; Strive to fulfill your covenants even if they are difficult; Bring yourself closer to Allah by honoring your commitments; Receive praise from Allah and His Messenger by keeping your word.

This hadith is about the importance of fulfilling one's covenant. A covenant is a promise or agreement between two people or groups that must be kept. In this hadith, Mu'awiyah was narrating a saying of the Prophet Muhammad in which he praised Talhah for fulfilling his covenant. This shows us that it is important to keep our promises and agreements and not break them as it will lead to praise from Allah and His Messenger. It also teaches us that we should strive to fulfill our covenants even if they are difficult because doing so will bring us closer to Allah and His Messenger's pleasure.