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The framework under which decays $\Lambda_{b}(\frac{1}{2}^{+})\rightarrowB(\frac{1}{2}^{+})+M$ are analyzed is not applicable for the decays$\Lambda_{b}(\frac{1}{2}^{+})\rightarrow B^{\ast}(\frac{3}{2} ^{+})+M$. Thesedecays occur through a baryon pole $\Sigma^{0}_{c}$ which is generated by theW-exchange diagram in the process $b+u \xrightarrow {W} c+d$. The effectiveHamiltonian which arises from the W-exchange diagram is expressed in the nonrelativistic limit. Since $% \Sigma^{0}_{c}$ belongs to representation $6$ ofSU(3), it contributes to two sets of decays:$\Lambda_{b}\rightarrow\Delta^{0}D^{0},\Delta^{-}D^{+},% \Sigma^{*-}D_s^{+}$and $\Lambda_{b}\rightarrow\Sigma^{\ast-}_{c}\pi^{+},%  \Sigma^{\ast 0}_{c}\pi^{0}\;, \Xi^{\ast 0}_{c}K^{0}$. The branching ratiosfor these decays are evaluated which can be compared with their experimentalvalues when the data become available. Other prediction of the model is thatasymmetry parameter $\alpha = 0$, since baryon pole contributes to parityconserving (p-wave) amplitude and does not contribute to parity violating(d-wave) amplitude.

Two Body Hadronic Decays $\Lambda_{b}(\frac{1}{2}^{+})\rightarrow B^{\ast}(\frac{3}{2}^{+})+P$ in a quark model