We study $D_{s}^{+}$ decays to final states involving the $\eta'$ with a
482$\,$pb$^{-1}$ data sample collected at $\sqrt{s}$ = 4.009$\,$GeV with the
\mbox{BESIII} detector at the BEPCII collider. We measure the branching
fractions $\mathcal{B}(D^+_{s}\rightarrow \eta'X)$ = (8.8$\pm$1.8$\pm$0.5)$\%$
and $\mathcal{B}(D_{s}^{+}\rightarrow \eta'\rho^{+})$ = ($5.8\pm1.4\pm0.4$)$\%$
where the first uncertainty is statistical and the second is systematic. In
addition, we estimate an upper limit on the non-resonant branching ratio
$\mathcal{B}(D_{s}^{+}\rightarrow \eta'\pi^+\pi^0)<5.1\%$ at the 90$\%$
confidence level. Our results are consistent with CLEO's recent measurements
and help to resolve the disagreement between the theoretical prediction and
CLEO's previous measurement of $\mathcal{B}(D_{s}^{+}\rightarrow
\eta'\rho^{+})$.