If the commands were set using fw sam on the CLI within the standard clish shell, you'll see evidence of this in /var/log/messages like so:
Sep 1 13:26:13 2022 R8120EA clish[30380]: cmd by admin: Start executing : fw sam ... (cmd md5: 70c66e959afe845950934f11615fff55)
Sep 1 13:26:13 2022 R8120EA clish[30380]: cmd by admin: Processing : fw sam -D (cmd md5: 70c66e959afe845950934f11615fff55)
If it was done in SmartConsole, you might find evidence in the Audit logs in SmartConsole (haven't checked).
If it was done via expert mode, unless you've taken steps to explicitly log commands entered there, or you did something like @G_W_Albrecht pointed you to, that information is not logged anywhere, at least as far as I know.