Our advice to negligent youth is to repent before it is too late and before they come to regret not doing their duty towards Allaah. For death may come suddenly; and Allaah may give respite but no wrongdoer can escape His punishment, and He is Almighty and is the One Who wreaks vengeance. Sin has an effect on the body and soul, and its consequences may come in this world, before the Hereafter. They should remember the words of the Prophet (peace and blessings of Allaah be upon him) concerning the six whom Allaah will shade from the heat of the Day of Resurrection in the shade of the Throne: “… and a young man who grew up worshipping Allaah …” Narrated by al-Bukhaari, 660; Muslim, 1031. They should feel shy before their Lord and should feel ashamed when the ummah is being attacked by its enemies and needs young people to lead this ummah out of its crisis and to fight the enemy in jihad in obedience to Allaah. They should think of the last verse of the Qur’aan to be revealed, and the last command that Allaah gave to mankind (interpretation of the meaning): 

“And fear the Day when you shall be brought back to Allaah. Then every person shall be paid what he earned, and they shall not be dealt with unjustly”
[al-Baqarah 2:281]

And Allaah knows best. May Allaah send blessings and peace upon our Prophet Muhammad and upon his family and companions.