What is the retribution for one who attempts to corrupt the youth of Muslims?

Fitnah (tribulation) is divided into two types: the fitnah of doubts, the worst of which is associating partners with Allah and deviating from the clear verses of the Quran and the authentic Sunnah; and the fitnah of desires, the worst of which is spreading indecency. Jihad is legislated to remove fitnah and to make the religion entirely for Allah, as Allah the Almighty said: "And fight them until there is no fitnah and [until] the religion, all of it, is for Allah." And whoever opposes Allah and His Messenger will be humbled and forsaken, and their destiny will be among the most disgraced.

Spreading indecency is forbidden, as Allah the Almighty said: "Indeed, those who like that indecency should be spread among those who have believed - they will have a painful punishment in this world and the Hereafter." This warning is for those who merely like it, so what about those who strive, spread, call to, and adorn these fitnahs? And whoever is pleased with the action of a people will be gathered with them. Therefore, a Muslim must detest indecency and its spread, and whoever assists in it is a participant in sin. The consequence of fitnah is regret and the disappearance of blessings.