  CP-violating signals in weak $ \Xi\to \pi \Lambda$ decay require the
knowledge of $\pi \Lambda$ $S$- and $P$-wave scattering phases at ${m}_{\Xi}$
center-of-mass energy. We have calculated these phases in baryon chiral
perturbation theory with the ground-state $\Sigma$ in $s$ and $u$ channels and
${{3 \over 2}}^{+}$ $\Sigma(1385)$ in the $u$ channel. We do not treat the
baryons as heavy. We find ${\delta}_{S} = {1.2}^{\circ}$ and ${\delta}_{P} =
-{1.7}^{\circ}$ with the central value of the strong coupling parameter $D$. We
also investigate the variation of the scattering phases as functions of the
parameter $D$. We compare this result with previous calculations, and discuss
its relevance to CP-asymmetry parameters.
