Family members will get the chance to have their victim impact statements heard before sentencing concludes.
But family members of Mr Rayaz spoke out following the conclusion of the trial in November.
Mohammed Ayaz, his eldest son, said seeing his father after the attack was “awful and unbearable”.
“I felt so helpless and weak, no son or daughter should see their father or mother in that state,” he said.
Another son, Adnaan Riaz, said the CCTV of his father being set on fire and his screams of pain would stay with him forever.
Members of the West London Islamic Centre attended by Mr Odowa described the incidents as “abhorrent and malicious attacks on two elders within our community”.
“Our thoughts and prayers are with the victims and their families,” a spokesperson from the mosque said.