See http://support.sas.com/documentation/cdl/en/statug/68162/HTML/default/statug_rreg_details01.htm#statug.rreg.robustregfltest
The first test (Rho) is a robust version of the F test. So I guess it is the one you want.
The default cutoff value is 3 by default. I put 4 just to show it could be changed. What constitute an outlier is to a great extent a matter of opinion.
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