  In this paper we treat the \textit{multiparticle hopping asymmetric diffusion
model} (MADM) on $\mathbb{Z}$ introduced by Sasamoto and Wadati in 1998. The
transition probability of the MADM with $N$ particles is provided by using the
Bethe ansatz. The transition probability is expressed as the sum of
$N$-dimensional contour integrals of which contours are circles centered at the
origin with restrictions on their radii. By using the transition probability we
find $\mathbb{P}(x_m(t) =x)$, the probability that the $m$th particle from the
left is at $x$ at time $t$. The probability $\mathbb{P}(x_m(t) =x)$ is
expressed as the sum of $|S|$-dimensional contour integrals over all $S \subset
\{1,...,N\}$ with $|S| \geq m$, and is used to give the current distribution of
the system. The mapping between the MADM and the pushing asymmetric simple
exclusion process (PushASEP) is discussed.
