What is the ruling on competitions held for memorizing the Quran with monetary prizes, taking into account that the contestant's intention for memorization might be the prizes, and not solely to please Allah? And is there a jurisprudential rule that permits a primary, greater intention and a secondary, lesser intention? And does the ruling differ between one who intends a worldly matter for its own sake, and one who intends it for the sake of the Hereafter?

There is a jurisprudential principle which states: "What is impermissible independently is permissible dependently," or "What is excused implicitly is not excused intentionally," or "What is excused in secondary matters is not excused in primary matters." This principle is supported by the Almighty's saying: "There is no blame upon you for seeking bounty from your Lord," (Quran 2:198) where the trade of Muslims during Hajj does not compromise sincerity, because they do not intend it for its own sake. Rather, they primarily intend Hajj, and trade is a secondary benefit.