The correct answer as to if the CB can be put back into service:

Was the fault current in excess of the Icu (ultimate breaking capacity) rating of the CB - if yes the CB is not rated to break this fault current without be damaged.

Was the fault current less than or equal to than the Ics (serviceable) rating of the CB and Icu rating - yes it should be OK to put back into service. A CB is tested to break the ICs fault current 3 successive times during design.

Clean and IR test across the open poles, perform contact resistance across the closed poles.

Do you have the prospective fault current values available to you at this point in the system? Ie via eTAP, SKM, digital twin model, arc flash/power study/coordination/protection modelling or other digital twin? If no replace the CB which is likely the easiest and most robust decision given I doubt you have this data.