The Sharia of Moses in the TORA
Part 2 - The 365 Prohibitions of the Tora
122 - BREAKING ANY OF THE BONES OF THE SECOND PASSOVER OFFERING
The prohibition applies to any bone, whether it contains marrow or not.* Thus, if there is marrow in the bone the prohibition applies even if there is no meat on it, and vice versa; but if there is neither meat nor marrow, whipping is not entailed.**
** Abodah, Hilchoth Korban Pesach X, 3''