Help:Special property Query source

The Query source property is a special property in Semantic MediaWiki with a built-in meaning: it holds the identifier of an alternative (e.g. remote) query source used in a query. It is not possible to manually add a value to this special property. It is however indirectly taken from the value added to the  parameter to parser function   which is provided by. It was introduced with .CiteRef::gh:smw:2146

See the property page Query source to see which pages use this special property on this wiki.