Joseph identifies Jesus Christ as "Son Ahman."
Section XCVI, Doctrine and Covenants, 1844, 364, The Joseph Smith Papers website, accessed February 13, 2022
And let the higher part of the inner court, be dedicated unto me for the school of mine apostles, saith Son Ahman; or, in other words, Alphus; or, in other words, Omegus; even Jesus Christ your Lord: Amen.