You could you muster the effort to provide even a single credible source for this ridiculous assertion?

So we were back to that again, to this ridiculous assertion.

They file frivolous lawsuits and make ridiculous assertions and seem to have no interest in seeking the truth.

"That's a ridiculous assertion," she said, when asked about the plot.

Liet blinked in surprise at the ridiculous assertion.

Or make the ridiculous assertion that his niece "wasn't born a Gardiner."

He laughed at himself for half-believing her ridiculous assertion for even half a moment.

You see my loyalty to him as a crime, but given the doctrine of the Church, that is a ridiculous assertion.

This ridiculous assertion turned out to be accurate; Crunch was a veritable pacifist among ogres.

"I object to Senator Palpatine's ridiculous assertions and ask that he be silenced at once!"