Is it permissible to join mobilization while in a state of major ritual impurity (Janabah)?

Primary text

It is permissible for one who is in a state of major ritual impurity (Janabah), such as Hanzalah ibn Al-Rahib (known as Ghaseel Al-Mala'ikah), to join the mobilization. Furthermore, one should not interrupt prayer if it is already in progress when the call for mobilization is issued.