The following steps needs to be completed prior of migrating any workflow data from SharePoint 2013 to 2016. even though not specified, I would recommend applying these steps on both farms (source 2013, target 2016):
Disable the workflow timer job (Workflow).
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On the Central Administration Home page, click Monitoring.
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Under Timer Jobs, click Review job definitions.
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On the Job Definitions page, click Workflow.
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On the Edit Timer Job page, click Disable.
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Stop all services that host or interoperate with the SharePoint workflow engine.
Ref: