Search for the MSSM $A \to Zh$ decay with $Z \to l^+ l^- , h \to b \overline{b}$

The CMS potential for a simultaneous search for the CP-odd pseudo-scalar Higgs boson (A) and the CP-even scalar Higgs boson (h) is presented in the decay channel A->Zh with Z->ll (l=e,mu) and h->b bbar. The statistical signal significance and the systematic uncertainties are discussed.