Terming the verdict "unprecedented and despicable", Law Minister Farogh Naseem said: "This is an attempt to take Pakistan into dark ages."
Musharraf -- who is reportedly in Dubai and in poor health -- appeared in a hospital bed in the video looking frail and was straining to speak.
The former Army chief left for Dubai for medical treatment in March 2016 and has not returned since, citing security and health reasons.
In its petition, Pakistan's foreign ministry requested that the verdict in the high treason case be held back until a new prosecution team is formed
The true horrors of terrorism traceable to Pakistan was brought home to the US by the war on America launched that day by the Al Qaeda, which worked under the patronage of the Taliban that controlled Afghanistan and Pakistan.
Pakistan's former dictator Pervez Musharraf on Thursday claimed that Asif Ali Zardari was responsible for the killing of his wife Benazir Bhutto.
Aseefa Bhutto-Zardari, the youngest of the siblings, said that "they were still awaiting justice". In another tweet, she said that there would be no justice until "Pervez Musharraf answers for his crimes".
Musharraf, 74, has been living in Dubai since last year when he was allowed to leave Pakistan on pretext of medical treatment.