Hadith: O Allah, rectify for me my religion which is the safeguard of my affairs, and rectify for me the affairs of this world wherein is my sustenance, and rectify for me my Hereafter to which is my return, and make life for me an increase for every good, and make death a relief for me from every evil.

عن أبي هريرة رضي الله عنه قال: كان رسول الله صلى الله عليه وسلم يقول: «اللهم أصلح لي ديني الذي هو عِصْمَةُ أمري و اصلح لي دنياي التي فيها معاشي ، و أصلح لي آخرتي التي إليها مَعَادِي و اجعل الحياة زيادة لي من كل خير و اجعل الموت راحة لي من كل شر».
[صحيح] - [رواه مسلم]

Abu Hurayrah (may Allah be pleased with him) reported that the Prophet (may Allah's peace and blessings be upon him) used to say: "O Allah, rectify for me my religion which is the safeguard of my affairs, and rectify for me the affairs of this world wherein is my sustenance, and rectify for me my Hereafter to which is my return, and make life for me an increase for every good, and make death a relief for me from every evil."
Sahih/Authentic. - [Muslim]

Explanation

This supplication is from the supplications that the Prophet (may Allah's peace and blessings be upon him) used to make. It includes asking Allah for the good of this life and of the afterlife, and to make death a comfort from the evils of this world and from the evils of the grave (his words "every evil" imply all evils, before and after death). He asks Allah to make his life dedicated to everything that Allah loves and to make him stay away from everything that Allah dislikes.