al-Mufassal Maarifat Ruwaat Atraaf al-Kutub as-Sittah
(المفصل في معرفة رواة أظراف الكتب الستة)
is a book in the science of 'Ilm ar-Rijaal from the Narrators contained in the six famous books of Hadith written by Ahmad bin 'Abdus Sattaar Jasmalah al-'Ubaydee (rahimahullah) Printed on yellow paper in 13 Volumes.