What is another name for the Sermon on the Mount?

The Sermon on the Mount (Matthew chapters 5-7) is very similar to the Sermon on the Plain, found in Luke 6:17-49. The sayings attributed to Jesus in both sermons are believed to have been sourced by both authors from the hypothetical 'Q' document. So, although there are important differences in the two narratives, they come from the same source and can be regarded as the same sermon.