Mr Badawi received his first 50 lashes in public in January 2015, prompting international condemnation. Arrangements for his continued flogging have been postponed amid concerns for his health.
Ms Abitol, who founded the Raif Badawi Foundation with the blogger’s wife told Reuters: “Unfortunately, it could happen at any time, if it happens.”
A statement released by the foundation said: “As of today, we received from a private source the sad news concerning the fact that the Saudi government will resume the lashing punishment against Raif Badawi.
“Our source is the same that informed us about the first 50 lashes Raif Badawi received in a public place on January 9 2015.
“Our understanding of the information is that another series of lashes punishment will take place this time inside the prison.”
Ms Haidar, told Deutsche Welle: "I was totally shocked by the news. I'm worried and scared that they'll carrying on whipping him.
"I'm concerned about Raif's health, which is not good – either mentally or physically.
In pictures: Raif Badawi release protests
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"I really hope that Saudi Arabia will not go ahead and implement the sentence. I would hope that the Saudi authorities strip Raif of his citizenship and then deport him to Canada to be with us."
Mr Badawi founded the now-closed Liberal Saudi Network, an online forum that facilitated religious and political debate.
He was arrested in 2012 and charged with “insulting Islam through electronic channels” and “going beyond the realm of obedience”.
Later, after the blogger refused to “repent to God” a judge recommended he be tried for apostasy – a crime that carries the death penalty in the country.
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