Hardline Hurriyat Conference and JKLF also gave a call for a shutdown in Kashmir on Saturday.
A division bench of the High Court had on Tuesday directed the police to see that there is no sale of beef anywhere in the state after hearing a Public Interest Litigation (PIL) against cow slaughter.
"There will be peaceful protests after Friday prayers and a complete strike on Saturday against the High Court order. Jammu and Kashmir is a Muslim majority state and the court has not taken into account the reaction (from the community)," Geelani said in a statement.
Demanding its immediate revocation, he said, "Eid-ul-Azha festival is around the corner and such an order will not be tolerated."
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JKLF chairman Mohammad Yasin Malik also called a strike on Saturday against it.
The High Court Bar Association said it will move the High Court to challenge sections 298A and 298B of the RPC prescribing a ban on killing of bovine animals.
It said the directive was in violation of fundamental freedoms of the people, more particularly Muslims and amounts to an interference in their religious matters.
Jammu and Kashmir Jamaat-e-Islami (JeI) also criticized the directive, saying "it will not accept the order which is against the tenets of Islam".
"We will not accept this order. It is not only against the secular ethos but also against our faith," newly-elected chief of JeI Ghulam Mohammad Bhat told reporters here.
The HC directions comes ahead of Eid-ul-Azha later this month during which Muslims sacrifice bovines.