The source clock path is the path followed by the source clock from its source point (typically an input port) to the clock pin of the launching sequential cell. For a timing path starting from an input port, there is no source clock path.
The source clock path is the path followed by the source clock from its source point (typically an input port) to the clock pin of the launching sequential cell. For a timing path starting from an input port, there is no source clock path.