A pragmatic man, no doubt Abdul fears for his life, too !
Abdul implores Indy to give the Amulet back.
Swept away by a predictable change of heart, Indy returns the Amulet. The mummy calms and then thanks his visitors for their change of mind.
". . . THE CANDY, MUMMY, THE CANDY ! "
With that special Halloween encantation, Indy pursuades the mummy to banish his snakes and share his treasure with the other visitors that wait. . . there. . . in the dark.