The point is not whether this Lotus Sutra was told by the historical Buddha, or by some other person. As long as you attach to the historical Buddha too much, you cannot understand Buddhism.
From Temple of Six Banyans, China
—cuke.com/ig for links to the source of the photo. Excerpt from Shunryu Suzuki lecture 68-10-21 as found on shunryusuzuki.com, edited by PF. Go to instagram.com/cuke_archives for the Instagram version.