  We investigate the meson-baryon interaction in coupled channels with the
quantum numbers of the pentaquarks $P_{bss}$ and $P_{bsss}$. The interaction is
derived from an extension of the local hidden gauge approach to the heavy quark
sector, which has demonstrated accurate results compared to experiments
involving $\Omega_{b}$, $\Xi_{b}$ states, and pentaquarks $P_{c}$ and $P_{cs}$.
In our study, we identify several molecular states with small decay widths
within the chosen set of coupled channels. The spin-parity ($J^P$) of these
states is as follows: $J^P={\frac{1}{2}}^-$ for pseudoscalar-baryon
(${\frac{1}{2}}^+$) coupled channels, $J^P={\frac{3}{2}}^-$ for
pseudoscalar-baryon (${\frac{3}{2}}^+$) coupled channels, $J^P={\frac{1}{2}}^-$
and ${\frac{3}{2}}^-$ for vector-baryon (${\frac{1}{2}}^+$) coupled channels,
and $J^P={\frac{1}{2}}^-$, ${\frac{3}{2}}^-$, ${\frac{5}{2}}^-$ for
vector-baryon (${\frac{3}{2}}^+$) coupled channels. We search for the poles of
these states and evaluate their couplings to the different channels.
