\documentclass[english]{beamer}
\usepackage{babel}
\begin{document}
\begin{frame}
\frametitle{the referencing slide}
As you can see \hyperlink{refthis}{here}
\end{frame}
\begin{frame}
\frametitle{random stuff}
in between slide
\end{frame}
\begin{frame}[label=refthis]
\frametitle{Reference this}
I want to reference this frame.
\end{frame}
\end{document}