J Oliver EventStore - Saga Examples

I was wondering if there is any documentation/guidance on using Saga's and the EventStore. Part of my confusion is that when you look at using a Service Bus like NServiceBus or MassTransit the too have the concept of a Saga. I know the EventStore itself does not have the Saga in the code but the CommonDomain project does and they work together. Do I use the Saga infrastructure in the CommonDomain/EventStore or rely on ServiceBus Saga support? Or could both be used together?