%GPL License
\documentclass{article}

\makeatletter
%\explicitLabel{labelName}{pageref text}{ref text}
\newcommand{\explicitLabel}[3]{
    \@bsphack
        \protected@write\@auxout{}{%
            \string\newlabel{#1}%
                {%
                    {#3}%
                    {#2}
                }%
            }%
    \@esphack
    }
\makeatother

\begin{document}

\explicitLabel{x}{2}{LABEL}

Label \ref{x} is at page \pageref{x}.

\end{document}