Sharibu, speaking with Punch, described the purported release of Leah as an imagination.
Leah was among the 110 girls abducted by Boko Haram on February 19 in Dapchi, Yobe State.
About 104 of the girls had since returned after insurgents refused to release Leah on the ground that she refused to renounce her Christian faith.
However, reports emerged on Friday night from online platforms, quoting BBC Hausa Service that Leah had regained her freedom and was on her way to reunite with her parents.
But speaking on the development, Sharibu dismissed the rumour and urged those behind the story to stop creating confusion with fake news of Leah’s release.
He said, “Leah is not back yet, but we are praying and hoping that God will grant her freedom someday.
“I want to appeal to social media handlers to stop confusing us with fake news about Leah’s release.
“I know the traffic they generate with headlines about Leah, but such headlines should be authentic and not mere rumour.”
Secretary of the abducted Dapchi schoolgirls parents’ association, Mallam Bukar Kachalla, also appealed to the government to hasten up. He described Leah’s reported release as diversionary.
He further called on the Federal Government to hasten the process of Leah’s return so that she could be reunited with her parents.