Level: Nomad 4
Display: Auditory
Manifesting Time: 1 standard action
Range: Close (25 ft. + 5 ft./2 levels)
Target: One extraplanar creature
Duration: Instantaneous
Saving Throw: Will negates
Power Resistance: Yes
Power Points: 7
This power forces an extraplanar creature back to its proper plane if it fails a special Will save (DC = power’s save DC − creature’s HD + your caster level). If the power is successful, the creature is instantly whisked away, but there is a 20% chance of actually sending the subject to a plane other than its own.
Source: Expanded Psionics Handbook, page 94. Imported the text from the referenced dismissal spell and altered it for use as a psionic power.