West Sydney wife-killer faces sentencing

A man who murdered his wife with a stolen pair of scissors below the western Sydney hairdressing salon where she worked is expected to face sentencing.

In the hours after stabbing Leila Alavi 56 times on January 17, 2015, Mokhtar Hosseiniamraei told police it was because "she did not obey the rule of marriage".

"Because we were married, and ... she broke the contract. I could not tolerate it. And I could not forget it," he told officers.

Hosseiniamraei, a refugee who fled Iran because of religious persecution, met his bride in Turkey and travelled with her to Australia in 2010.

By late 2014 the relationship had broken down and Hosseiniamraei was abusing drugs daily.

Ms Alavi sought a restraining order on October 2014, but court documents indicate the couple continued to see one another regularly.

Justice Robert Allan Hulme is due to sentence Hosseiniamraei on Thursday after he pleaded guilty to the murder.