"This appeal is, therefore, allowed, the conviction and sentence of the appellant recorded and upheld by the courts below are set aside and she is acquitted of the charge by extending the benefit of doubt to her", he stated. She has been acquitted. The judgments of the High Court as well as the Trial Court are reversed.
A hardline Islamist party called for the death of the chief justice of the Supreme Court and two other judges who overturned Bibi's death sentence.
Those accused are incarcerated immediately, denied bail in most cases and put in solitary confinement.
Asia Bibi, a mother of four, has been living on death row since 2010 when she became the first woman to be sentenced to death by hanging under Pakistan's blasphemy laws.
Asia Bibi was arrested in 2009 and convicted in 2010 under section 295-C of Pakistan's penal code that punishes blasphemy against the Prophet Muhammad with the death penalty.
The women went to a local cleric and accused Ms Bibi of blasphemy against the Prophet Mohammed, a charge punishable by death under colonial-era legislation.
Earlier this month, the leader of the Islamic party Tehreek-i-Labbaik threatened to "paralyse the country within hours" if the court set Ms Bibi free - and the civilian government has been unwilling to take them on over any change to the law.
A journalist who visited her in prison before the verdict said she appeared to have memory loss and confusion.
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Moderate Muslims have always ruled Pakistan but right-wing religious groups - despite having little presence in the country's parliament - have blocked moves to amend controversial legislation impacting non-Muslims or women. A few days later, a mob accused her of blasphemy.
The sources said security personnel had been asked to guard the Red Zone as it houses sensitive installations, including the Supreme Court. "Asia Bibi has finally been served justice".
It has been a case of high-tension from the outset, with Salman Taseer, a Punjabi governor who supported Ms Bibi, gunned down in broad daylight by his bodyguard in Islamabad in 2011. His assassin, Mumtaz Qadri, was executed in 2016 and has been feted as a hero by hardliners, with a shrine to him built by Islamists just outside the capital.
She was then told off by a Muslim neighbor, who turned to other Muslim women in the area to tell them the Christian devotee had dirtied the water by drinking from their cup.
Ms Bibi's lawyer Saiful Mulook told Reuters: "It is great news for Pakistan and rest of the world".
Islam is Pakistan's national religion and underpins its legal system.
Human rights groups say Pakistan's blasphemy laws are exploited to settle personal scores.