Possible to get ‘regex source’ from match?

I can get the source of a regex when it’s defined separately. For example:

let r1 = new RegExp("el*");
console.log(r1.source);
// el*

Or:

let r2 = /el*/;
console.log(r2.source);

Is there a way to extract that if the regex isn’t defined separately? For example, something along the lines of:

let m = "Hello".match(/el*/);
console.log(m.source?);