React Redux mapDispatchToProps vs this.props.dispatch

Until now I used my containers and components actions this way:

<Header btnMnuAction={this.props.toggleSidebar} logout={this.props.logout}/>

With the mapDispatchToProps function:

const mapDispatchToProps = (dispatch) => {
    return {
        toggleSidebar: () => {
            dispatch(toggleSidebar());
        },
        logout: () => {
            dispatch(logout());
        }
    }
};

Now I tried it this way:

<Header btnMnuAction={() => this.props.dispatch(toggleSidebar())} logout={() => this.props.dispatch(logout())} >

Please, can someone explain to me what's the difference between these options?

Thanks :)