By the latter sequences in the film, they are speaking his language to each other, yet we are able to understand what they're talking about.
Waxa uu intaasi warku ku darayaa in labada dhinac ay isla qaateen in wada hadalkani uu noqdo kii ugu dambeeyay, waxaanay dhawaan si wada jir ah u shaacin doonaan nuxurka qodobada ay isku af garteen.