His letter of resignation was read by the Clerk of the House, Bode Adeyelu, during the plenary session on Wednesday.
The legislature is in crisis over the impeachment process of Deputy Governor, Agboola Ajayi.
On June 21, he defected to the People’s Democratic Party (PDP) from the All Progressives Congress (APC).
Since then, the plot to remove him from office has heightened.
On Tuesday, the APC national leadership referred to Ajayi as “former deputy governor”.