Burning Someone With Fire, Part 5
During the Riddah wars, when Khalid Bin Waleed defeated Tulayhah Al-Asadi in the battle of Buzaakhah, Abu Bakr wrote to him ordering him not to b lenient and to make an example out of anyone he captured from amongst the Kuffaar who had killed Muslims.
So Khalid Bin Waleed remained in Buzaakhah for a month hunting down the Murtadeen and taking revenge for the Muslims who had been killed.
Some of the Murtadeen he would burn alive, others he would stone to death, and others he would throw off the tops of mountains.
[Al-Bidaayah Wan-Nihaayah, by Ibn Katheer]