Al-Mughirah bin Shu'bah (May Allah be pleased with him) reported: Messenger of Allah ﷺ used to say at the conclusion of prayer: "La ilaha illallahu wahdahu la sharika lahu, lahul-mulku, wa lahul-hamdu, wa Huwa 'ala kulli shai'in Qadir. Allahumma la mani'a lima a'tayta, wa la mu'tiya lima mana'ta, wa la yanfa'u dhal-jaddi, minkal-jaddu (there is no true god except Allah. He is One and He has no partner with Him, His is the sovereignty and His is the praise, and He is Omnipotent. O Allah! None can deny that which You bestow and none can bestow that which You hold back; and the greatness of the great will be of no avail to them against You)". Al-Bukhari and Muslim.
This hadith teaches us to always remember the greatness of Allah in our lives and to thank Him for all His blessings upon us. It also reminds us that no matter how powerful someone may seem in this world, they will still be powerless against Him if they do not obey His commands or seek His forgiveness when needed. Finally, it encourages us to always seek protection from any harm or misfortune by asking for help from Him alone since He alone can provide it without fail!