French phrase
Quelle est la source de ~ ?
Meaning
What is the source of ___?
When to use it
A direct question about the source of information. It is used to check reliability and sounds natural in casual settings.
Example dialogue
On en parle beaucoup, mais c'est flou.
It's being talked about a lot, but it's unclear.
Quelle est la source de cette information ?
What is the source of this information?