Hadith: O Allah, I surrender to You, I believe in You, I rely on You, I return in repentance to You, I oppose Your opponents. I seek refuge with Your Honor, there is no god but You, that You do not lead me astray. You are the Ever-Living who never dies, yet the Jinn and humans will all die!

عن عبد الله بن عباس رضي الله عنهما أن النبي صلى الله عليه وسلم كان يقول: «اللهم لك أَسْلَمْتُ، وبك آمنتُ، وعليك توكلتُ، وإليك أَنَبْتُ، وبك خَاصَمْتُ، اللهم أعوذ بِعِزَّتِكَ لا إله إلا أنت أن تُضِلَّنِي، أنت الحيُّ الذي لا يموتُ، والجِنُّ والإِنْسُ يموتون».
[صحيح] - [متفق عليه، وهذا لفظ مسلم ورواه البخاري مختصرا]

‘Abdullāh ibn ‘Abbās (may Allah be pleased with him) reported that the Prophet (may Allah's peace and blessings be upon him) used to say: "O Allah, I surrender to You, I believe in You, I rely on You, I return in repentance to You, I oppose Your opponents. I seek refuge with Your Honor, there is no god but You, that You do not lead me astray. You are the Ever-Living who never dies, yet the Jinn and humans will all die!"
[Authentic hadith] - [Narrated by Bukhari & Muslim]

Explanation

The Prophet (may Allah's peace and blessings be upon him) resorts to his Lord and seeks closeness to Him through supplication. Hence, he confirms that he submits himself to his Lord, entrusts Allah with all his affairs, and relies on none but Him. He also states that he returns to Him with a repentant heart and that he argues the enemies of Allah by His power, support, and victory through the proofs and evidence that Allah has granted him. The Prophet (may Allah's peace and blessings be upon him) then seeks refuge in the power of Allah against doom by depriving him of following guidance and the right path. He confirms that by saying "there is no god but You", because Allah is the only One to be sought for refuge against evil things. Finally, the Prophet (may Allah's peace and blessings be upon him) affirms that to his Lord belongs the real and everlasting life, whereas the humans and Jinn die. He mentioned humans and jinn in particular because they are the ones competent for religious duties and the target of Allah's message. So, they are the prime target (in comparison to the rest of the creatures).