A man who brutally murdered his wife as she breastfed their youngest child has been sentenced to 30 years behind bars.

Maged Al Harazi, 36, killed mother-of-three Sabah Al Mdwali during a frenzied knife attack in a bedroom of their Canberra home in March 2015.

Ms Al Mdwali's body was found with more than 50 stab wounds and she suffered horrific head injuries.

During sentencing, Al Harazi said that after his wife had died, he had a 'vision from Allah' telling him she had been cheating on him, the ABC reported.

Maged Al Harazi, 36, killed mother-of-three Sabah Al Mdwali in a bedroom of their Canberra home in March 2015. He was sentenced to 30 years jail on Thursday

The convicted killer pleaded not guilty and protested his innocence throughout the trail.

The couple's two eldest children gave evidence in court, one who reportedly said she saw Al Harazi with a knife on the night of the killing.

The pair had a turbulent relationship and often argued about where they would live, the trial heard, according to The Canberra Times.

Al-Harazi reportedly wanted the family to move back to their home country of Yemen, while his wife wanted to stay close to her relatives in Canberra.

The convicted killer will be eligible for parole in 2036 and will likely be deported to when he is released.

The murdered woman's brother Salah said he will 'never forgive' Al Harazi who had 'stolen everything' from her.

Al Harazi murdered his wife as she breastfed their youngest child in their home (stock image)

'No sentence that was handed down today will bring Sabah back,' he said, according to the ABC.

'We will never be able to forgive this man for the horrible and shameful acts he has committed.

'We will always cherish our loving memories of Sabah and our time together. Mr [Al Harazi] will never steal those memories from us.'