The strong believer is better and more beloved to Allah than the weak believer
It was narrated that Abu Hurairah, may Allah be pleased with him, said, attributing it to the Prophet (may the peace and blessings of Allah be upon him):
“The strong believer is better and more beloved to Allah than the weak believer, although both are good. Strive to seek that which will benefit you, keep asking Allah for help and do not feel helpless. If something overwhelms you, then say: Qaddarallah, wa ma sha'a fa’al (It is the decree of Allah and he did what he willed). beware of (saying) ‘If only,’ for ‘If only’ opens the door to Satan.”
This is one of the greatest commandments that a Muslim needs concerning both religious and worldly matters, it is not dispensed with wherever the Muslim is; because it is in general a correct educational approach, derived from the Holy Quran as is the case in all his commandments peace be upon him.
What is meant by the strong believer is the one who is strong in terms of faith, obeying his Lord and supporting his religion, ordering what is good and forbidding what is evil, as well as being strong in knowledge and body, facing the difficulties and enduring the hardships, patience with the decree of Allah whether it is good or appears to be evil, to the end of the matters in which the believers differ be them firmness, determination and courage, honesty and sincerity, until he fulfills the other branches of faith.