( ذلك بأنهم شاقوا الله ) خالفوا الله ، ( ورسوله ومن يشاقق الله ورسوله فإن الله شديد العقاب )
What happened to the disbelievers, when they were killed and their limbs were struck, was because they went against Allah and His Messenger. They did not follow what they were instructed to do, and did not stop doing what they were told not to do. Those who oppose Allah and His Messenger, Allah is firm with the punishment for them in this world, with death and capture, and in the Afterlife, with the fire of Hell.