Is the Mujahid (one who strives for the sake of Allah) detained from accountability and Paradise due to debt, and is this specific to him or abrogated, and if it is specific, how can individual jihad be sanctioned for the debtor without the creditor's permission?

It is authentically reported in Sahih Muslim that the Prophet (peace and blessings be upon him) said: "Every sin of a martyr is forgiven, except debt." This includes all human rights. The Hadith: "I am more worthy of the believers than their own selves. So, if any Muslim dies and leaves a debt, it is my responsibility to pay it. And if he leaves wealth, it is for his heirs" has been interpreted by some scholars as a specificity of the Prophet (peace and blessings be upon him), while others interpreted it as an obligation upon the Imam after him. Allah may graciously bestow upon the debtor such that his adversaries become pleased with him. If Jihad becomes an individual obligation (fard ayn), the debtor does not need to seek permission from the creditor, because it becomes his direct responsibility; however, it is preferable not to expose oneself to places where death is likely.