If you're wanting to get rid of Abdullah, there are only two times in the game that you can get him to move.
The first is right after you find the burial chamber. Here's what UHS Hints says:
After you talk to Jamila, come talk to Abdullah again and ask if he's happy with Jamila being in the tomb. He huffs and puffs, then stomps off to pull his little martinet trip, and his spot is yours for a short time.
Check your tasklist also, see what still needs to be done there.
"Bleat, Watson -- unmitigated bleat!" ~ Sherlock Holmes