dagster/_core/definitions/asset_layer.py

ddef build_asset_selection_job(
    name: str,

    ...

    if partitions_def:
        for asset in included_assets:
            check.invariant(
                asset.partitions_def == partitions_def or asset.partitions_def is None,
                f"Assets defined for node '{asset.node_def.name}' have a partitions_def of "
                f"{asset.partitions_def}, but job '{name}' has non-matching partitions_def of "
                f"{partitions_def}.",
            )