PAS leaders who attended the inking of the Citizens' Declaration were there to collect information, said party information chief Nasrudin Hassan.

He said they had permission to attend, so that they can furnish a report to the party.

"(We were) informed and permitted them to attend so that we know what they were up to and we can get clear and accurate information," he said when met in Parliament today.

Those who attended the event were PAS former secretary-general Mustafa Ali, Ulama council information chief Khairuddin Aman Razali, Pokok Sena MP Mahfuz Omar and Salor state assemblyperson Husam Musa.

Meanwhile, secretary-general Takiyuddin Hassan said they were not representing PAS.

"Our stand is very clear, we are not part of the pact and we have our own views that we will submit to the relevant parties," he added.

"We were invited (by Mahathir), but we need further particulars about the event. So, we cannot participate until we are very clear about this," he said.

He added that PAS wanted to know who would replace Najib instead of just getting rid of him.

He denied that PAS refused to turn up at last Friday's event because of its ties with Umno.

PAS will call its members who attended the event to explain themselves to the party, he said.

"We will get the explanation from all of them. I don't know why they were there.

"Everyone has the right to be heard. We will listen first. We cannot lay blame on them yet. (They are) innocent until proven guilty," he said.