Complex sentence: A coworker at the transport company, Abdel Karim, stated that Salhi had once asked him his opinion of Daesh; after hearing Karim's opinion, Salhi would no longer speak with him other than to say hello and goodbye.
Split into simpler sentences: A coworker at the transport company, Abdel Karim, stated that Salhi had once asked him his opinion of Daesh. After hearing Karim's opinion, Salhi would no longer speak with him other than to say hello and goodbye.