sentences:  The exact time of composition cannot be determined.Zunz holds dates it to the mid-11th century; but this is dubious inasmuch as it is mentioned by name by Hananeel and Nathan, both of whom lived in the early 11th century.Buber thinks that the midrash was compiled as early as the 8th century, since quotations from it are found (though without references to the source) at the end of the "Halakot Gedolot" and in the "Seder R. Amram" 12b.