The influential former Kelantan Menteri Besar said PAS belonged to all its members and any decision must have the full support of members during its muktamar.
“No one can arrange for any cooperation between PAS and UMNO, what more if it's in secrecy, this party is open to the public and belongs to all members," said Nik Aziz, amid renewed efforts by some UMNO leaders and renegade PAS members calling for cooperation between the two parties.
In recent times, such calls have been made by former PAS deputy president Nasharudin Mat Isa and former minister Zainudin Maidin. While PAS Ulama Council chief Harun Taib suggested that the proposal could be debated and put to the vote at the party muktamar.
Nik Aziz however vowed to strongly oppose any alliance with UMNO.
“I will not allow it, as long as I am alive, I will never allow any effort to forge cooperation between PAS and UMNO," he told Harakahdaily.
Nik Aziz pointed out that despite being a Malay-Muslim party, UMNO had always rejected PAS's Islamic principles, in addition to "many other faults committed by UMNO".
“As such, there is no reason for us to join them and let me remind others not to continue such efforts," he stressed.