Faulty formulation: Praying for a good end is sufficient; protecting one's faith, following truth and avoiding prohibitions are separate and unnecessary matters.
Correct formulation: One asks Allah for steadfastness and a faithful end while also seeking knowledge, obeying, repenting and acting rightly. Prayer and effort are not substitutes for each other.
Application: When someone recognizes a fault in belief or conduct, merely wishing for salvation is not enough. One should recognize truth, avoid falsehood and seek Allah's enabling grace.