It’s pretty much exactly as described in Lawrence’s Seven Pillars of Wisdom, but since then it’s been an open question about whether or not it actually happened. The pages from Lawrence’s diary about the relevant days have been ripped out. James Barr, an author who specializes in the period and wrote a book about Lawrence claims to have done some forensic work on the diary that suggests Lawrence was in Azrak during the period, which is supported by a letter Lawrence sent immediately before his supposed capture.

I’m personally agnostic about whether or not it happened. It’s titilating and perhaps indicative of his overall effort at self-promotion, but in the broad scheme of things I’m not sure how critical a question it is to have a definitive answer to.