Is the supplication "Munajat al-Rajin" authentic?

This statement is not from the words of the Prophet, peace and blessings be upon him, nor is it narrated from the predecessors. However, it is a good statement with no impermissible content, and there is no harm in supplicating with it. Nevertheless, adhering to what has been authentically reported from the Prophet, peace and blessings be upon him, is of greater blessing and more benefit.