The father of Islamic State murderer “Jihadi John” reportedly told his son that he hoped he would be killed when he admitted he was heading to Syria “for jihad” in 2013.

The admission was made in a phone call that Jassem Emwazi made to a colleague Monday to explain his absence from his job as a storekeeper in Kuwait, the Telegraph reported Tuesday.

Emwazi also described his son, Mohammed, as a “dog, and animal and a terrorist,” the colleague, Abu Meshaal, told the newspaper.

"He was very emotional and crying the whole time," Meshaal said. "He said, 'my son is a dog, he is an animal, a terrorist. He said he had talked to him a lot trying to persuade him to return to his personal life but that the son didn't listen to him. He said, 'To hell with my son'."

According to Meshaal, Jassem Emwazi said his son had called him from Turkey in 2013 and asked for his parents' blessing for a trip to Syria to wage jihad.

"Mohammed called his father and said, 'I'm going to Syria to fight jihad; please release me and forgive me for everything'," Meshaal told The Telegraph. "Jassem said, "f*** you. I hope you die before you arrive in Syria."

Mohammed Emwazi would later surface in a series of ISIS beheading videos wearing a mask, earning the nickname “Jihadi John.”

Jassem Emwazi has not reported for work since last Friday, the day after his son was identified as the masked murderer.

In a conversation with Kuwaiti investigators Sunday, the father said he was so ashamed of his son that he no longer wanted to leave his house in Al-Oyoun, Kuwait, or come to work, The Telegraph reported.

"He said he cannot come back to work because he felt so shy of other people," Meshaal said. "He is sitting home and cannot even go to the mosque to pray because he is ashamed of his son. He doesn't want people to see him, so he is praying at home."

Meanwhile, Emwazi’s mother reportedly knew that her son was behind the mask when he first appeared in beheading videos, but did not report him, Kuwaiti investigators have been told.

“The mother recognized the voice and she screamed 'that is my son' while he was talking before beheading the first American hostage," a source familiar with the investigation told The Telegraph. "When they played the video again, the father was sure it was his son."

Both parents are now expecting him to be killed, The Telegraph reports.