Reps spokesman said Obasanjo birthed the 4th Republic National Assembly with corruption from day one.
Obasanjo had called for an investigation into alleged budget padding raised by ex-appropriation chairman, Abdulmumin Jibrin.
While addressing a press conference in Abuja, on Thursday, November 24, 2016, Reps spokesman, Abdulrazak Namdas said ex-president Obasanjo tried to bribe lawmakers with 50 million each to amend the constitution.
Namdas noted that Obasanjo lacked the moral authority to discuss corruption and abuse of office.
"Obasanjo's list of his corrupt acts while in office is endless," Namdas said. "Unquestionably, he (Obasanjo) is the greatest corrupt person ever to hold office in Nigeria. He remains the grandfather of corruption in Nigeria and lacks the moral authority to discuss corruption or indeed abuse of office in Nigeria as he remains the most corrupt Nigerian on record.
"Undoubtedly, the former President Obasanjo is understandably angry with the National Assembly as an institution having foiled his ambition for a third-term in office even after trying to corrupt the members with a bribe of at least N50m each.
"Lest we forget, the person who introduced corruption to the National Assembly is Chief Olesugn Obasanjo. He birthed the 4th Republic National Assembly with corrupt practices from day one; indeed the first day of the Republic. He bribed both PDP, ANPP and AD legislators on their inauguration in 1999 to vote against the majority candidate of PDP, Dr. Chuba Okadigbo. That was how Senator Evan Enwerem became Senate President," the House spokesman added.
Meanwhile, Obasanjo has asked President Muhammadu Buhari to focus on solving Nigeria's problems instead of apportioning blames on past administrations.