  The $\Xi N$ interaction plays an important role in our understanding on the
long-anticipated $H$-dibaryon. Recent lattice QCD calculations verified the
attractive nature of the $\Xi N$ interaction. On the other hand, whether it is
strong enough to generate a bound state remains inconclusive.In this work,
assuming that it can generate a weakly bound state, we study the yields of the
$\Xi N$ dibaryon for different binding energies in $pp$ collisions at 7 TeV
using the coalescence model and the transport model PACIAE. The yields are
estimated first numerically and then analytically adopting a Yukawa-type wave
function. In particular, we find that in the weak binding limit, there exists a
universal relation between the yield and the binding energy, valid for $pp$
collisions.
