A Yazidi mother has revealed how her four-year-old son was forced to join an ISIS terror training camp, where he was inculcated in the evil practices of the terror group.

The child was forced to learn passages from the Koran, Sharia Law and in a sickening example of the depravity of the group, he was given a sword and taught how to behead his own mother.

The woman, identified using the false name Bohar, was captured by extremist militants last August, just south-east of Sinjar Mountain, along with her son called Hamo, (not his real name) and her three other children. They were imprisoned with 2,000 other Yazidi, and were shunted between prisons in Tal-Afar and Badush in Mosul.

She said she was helpless to prevent the abuse of her son and watched as he was handed a sword by their captors, who told him "this is to kill your mother".

The young boy later revealed the gruesome training he underwent. He was taught how to behead victims, shoot guns and hate the people of his own community.

IS has been known to groom children to take part in jihad and has preyed upon the children of Raqqa who are forced into 'junior Jihadi training camps', with the objective of creating an entire generation for whom Islamic extremism and acts of terrorism are normal practice.

In an exclusive interview, with MailOnline, speaking from a refugee camp in Dohuk, northern Iraq, the 35-year-old mother described the horrors of her life as a Yazidi slave and the brutality she and her children were subjected to. She said: "ISIS trained my son to learn the Koran, how to speak Arabic, how to pray and how to use a sword.

"They told him that Yazidis are Kafir, Arabic for 'non-believers' and told him he had to fight them. This one time the ISIS man gave him a sword and said this is to kill your mother."

"In Badush prison ISIS took my eldest daughter and my eldest son who is 12. They took them to Syria," she said. "Some friends [later] told me my daughter and son were taken to Raqqa, where I believe they still are."

Bohar managed to keep her two youngest children - a daughter, 14, and the little boy, Hamo - with her, however she ws unable to safeguard them from the depraved acts of their captors.

"In Tala-Afar prison, ISIS put urine in the water tank, and food with glass in it. They wanted to hurt us," she explained.

In August, when the coalition airstrikes began, things got far worse. "ISIS fighters there beat us very badly, especially when they saw the US airplanes."

At one point the family were moved to an abandoned village, where they were given one hot meal a day, but the food was laced with morphine to make them feel drowsy and prevent them from escaping. Those who managed to attempt an escape were savagely killed.

In November, she was moved to the Isis de faco capital Raqqa, where she learned her two remaining children were put up for sale at an ISIS people slave market. Her 12-year-old son was with around 250 other children being forced to learn the Koran, taught about ISIS's enemies and trained as soldiers.

She said: "I saw him on this military base. I saw them beat him because he did not accept the rule of ISIS."

She was also separated from her daughter who was sold to a militant. "They took my daughter, she was just 14-years-old, an ISIS man bought her."

Sold into slavery, Bohar and her son were bought by a Syrian man. "He was very bad to us, he did not give anything to us, he never opened the fridge for us," she said. "I wanted him to sell me back to my family, but he refused...I asked him if he bring my other daughters and son here, but he [also] refused."

After two months, Bohar and her son were sold once more, this time to an older Saudi Arabian fighter called Omar Al-Najde, a high-ranking ISIS commander.

Al-Najde made Bohar work as a servant with two other teenage Yazidi girls, and took Hamo to the jihadi training camp to indoctrinate him.

Bohar finally managed to flee across the border to Turkey with her son and while he was not forced to kill his mother, she is certain he would have been trained to kill for ISIS. Her other children remain trapped in the clutches of the evil regime.