We were told by ʿAbd Allāh ibn Munīr, from ʿAbd Allāh ibn Bakr, from Fāʾid ibn ʿAbd al-Raḥmān, from ʿAbd Allāh ibn Abī Awfā, who said: The Messenger of God, peace and blessings be upon him, said: "Whoever has a need to God, or to any one of the children of Adam, let him perform ablution and do it well, then pray two rakʿahs, then praise God and send blessings upon the Prophet, peace and blessings be upon him, then say: 'There is no god but God, the Forbearing, the Generous. Glory be to God, Lord of the Mighty Throne. Praise be to God, Lord of the worlds. I ask You for the things that necessitate Your mercy, and the resolutions of Your forgiveness, and the gain of every good, and safety from every sin. Do not leave for me any sin but that You forgive it, nor any worry but that You relieve it, nor any need that is pleasing to You but that You fulfill it, O Most Merciful of the merciful.'"

This is a strange ḥadīth, and there is criticism concerning its chain of transmission. Fāʾid ibn ʿAbd al-Raḥmān is considered weak in ḥadīth, and Fāʾid is Abū al-Warqāʾ.

--------------------------------------------
(1) Its chain of transmission is very weak; Fāʾid ibn ʿAbd al-Raḥmān is abandoned (matrūk).
It was also recorded by Ibn Mājah (1384) and al-Ḥākim 1/320 via the chain of Fāʾid ibn ʿAbd al-Raḥmān, from ʿAbd Allāh ibn Abī Awfā.
Al-Mubārakfūrī said: His saying "the things that necessitate Your mercy" (mūjibāt raḥmatik) — with a kasrah on the jīm — means its causes. Al-Ṭībī said: it is the plural of mūjibah, which is the word that necessitates for its speaker Paradise. Ibn al-Malik said: it means the deeds, words, and attributes through which Your mercy is obtained.
And "the resolutions of Your forgiveness" (ʿazāʾim maghfiratik) — al-Suyūṭī said: i.e., its necessities, the plural of ʿazīmah. Al-Ṭībī said: i.e., deeds by which Your forgiveness is firmly resolved and assured.