Iraqi special forces are holding their positions along Mosul's eastern outskirts as poor weather hampers their advance into the city to oust the so-called Islamic State.
Military chief Brigadier General Haider Fadhil said they did not plan to make any further advance into the terrorist stronghold on Wednesday because clouds could obscure the view of aircraft and drones.
Troops have made a swift advance to the outskirts of Mosul in recent weeks. However they have warned it could take months to finally drive out IS from the city.
In the purported recording al-Baghdadi said he is "confident of victory" and calls on the people of Mosul to fight the "enemies of God".
Iraqi general in charge of the advance hailed the 'significant' capture of the state TV station.
Iraq's prime minister has warned so-called Islamic State to "surrender or die" as government troops close in on Mosul.