A Nigerian court ruled that Islamic religious law does not violate the constitution, dismissing a test-case challenge from a singer who was sentenced to death two years ago on the charge of blasphemy. But in a majority decision, the court in northern Kano state also upheld a lower court's call for a retrial. Yahaya Aminu Sharif was convicted of having shared a blasphemous message on WhatsApp and was sentenced to death in August 2020 by a sharia court. The high court in Kano threw out the conviction and ordered a retrial but Sharif appealed, challenging the constitutionality of the religious…