Syed Sha Atef Ali al Quaderi was in the news recently for issuing a 'fatwa' against Sonu Nigam after the singer had raised objection to the use of loudspeakers in shrines to send out sermons.
He has offered a reward of Rs 20 lakh for anyone who puts a garland of Jadhav's shoes around Sharif's neck and parades him across India.
"Pakistan calls itself an Islamic country, but it is giving shelter to terrorists and supporting terror. It's the job of its prime minister to take strict action against terrorism," he said.
Quaderi said as a prime minister Sharif has "failed totally" while a Pakistan military court has sentenced Jadhav to death in a frivolous case.
He said Pakistan has given shelter to many "so-called Islamic terror groups" and that it should first state which portion of the Holy Quran says that terror be spread.
Forty six-year-old Jadhav was sentenced to death last month by a Pakistan military court that convicted him of alleged spying and subversive activities. The retired Indian Navy officer has been in Pakistan custody for more than a year. The International Court of Justice (ICJ) has stayed his execution.