  We present our results of a local probe study on
EuFe$_{2}$(As$_{1-x}$P$_{x}$)$_{2}$ single crystals with $x$=0.13, 0.19 and
0.28 by means of muon spin rotation and ${}^{57}$Fe M\"ossbauer spectroscopy.
We focus our discussion on the sample with $x$=0.19 viz. at the optimal
substitution level, where bulk superconductivity ($T_{\text{SC}}=28$ K) sets in
above static europium order ($T^{\text{Eu}}=20$K) but well below the onset of
the iron antiferromagnetic (AFM) transition ($\sim$100 K). We find enhanced
spin dynamics in the Fe sublattice closely above $T_{\text{SC}}$ and propose
that these are related to enhanced Eu fluctuations due to the evident coupling
of both sublattices observed in our experiments.
