sentences:  In that portion of Yalkut Shimoni which covers the books of Samuel, Psalms, and Proverbs, the term "Midrash" designates the midrash on the respective books.The term "Midrash" is used also to indicate the source of passages which belong to older or more recent works.In these few instances the author was apparently either uncertain of his references or he used an older collection known under the name of "Midrash," but did not have access to the original documents.