An online activist, Mustafa was charged under article 98 of the Egyptian Penal Code for a Facebook post that was deemed to be "degrading to God" and sentenced to three years' imprisonment (in absentia).
Mustafa Abdel-Nabi is an Egyptian atheist who in January 2016 was sentenced to three years in prison in absentia for atheistic Facebook posts. He was convicted under Article 98(f) of the Egyptian penal code, which criminalizes insults against “heavenly religion.” More specific information about the nature of his offense is unavailable at this time.
On February 23 of the same year, Mustafa's sentence was upheld in an appeals court.
Selected Blasphemy Cases - United States Commission on International Religious Freedom
Blasphemy cases rise in Egypt and Christians bear the brunt - AP
Egypt has a general blasphemy law that prohibits disparaging “the heavenly religions.” While the law ostensibly targets no religion in particular, in practice it is usually used against religious minorities and those who blaspheme Islam. Egypt’s Coptic Christian minority has particularly borne a disproportionate weight of blasphemy prosecutions. In addition to the relatively aggressive efforts of Egyptian authorities to prosecute such cases, blasphemers and atheists must also contend with social pressure, coercion, and the risk of vigilante violence.