  Inspired by the recent evidence of $P_{cs}(4459)$ reported by LHCb, we
continue to perform the investigation of hidden-charm molecular pentaquarks
with double strangeness, which are composed of an $S$-wave charmed baryon
$\Xi_c^{(\prime,*)}$ and an $S$-wave anti-charmed-strange meson
$\bar{D}_s^{(*)}$. Both the $S$-$D$ wave mixing effect and the coupled channel
effect are taken into account in realistic calculation. A dynamics calculation
shows that there may exist two types of hidden-charm molecular pentaquark with
double strangeness, i.e., the $\Xi_{c}^{*}\bar D_s^*$ molecular state with
$J^P={5}/{2}^{-}$ and the $\Xi_{c}^{\prime}\bar D_s^*$ molecular state with
$J^P={3}/{2}^{-}$. According to this result, we strongly suggest the
experimental exploration of hidden-charm molecular pentaquarks with double
strangeness. Facing such opportunity, obviously the LHCb will have great
potential to hunt for them, with the data accumulation at Run III and after
High-Luminosity-LHC upgrade.
