PAS president Abdul Hadi Awang will be attending the Umno general assembly on Dec 6.
PAS secretary-general Takiyuddin Hassan said other top federal and state leaders will also be attending.
"PAS is very confident that PAS' togetherness with Umno and BN in all programmes and actions will strengthen understanding and operations in Muafakat Nasional towards the people's wellbeing and national interests," Takiyuddin said in a statement today.
Hadi (photo) had not attended last year's Umno general assembly due to prior commitments.
However, PAS was represented by deputy president Tuan Ibrahim Tuan Man and other leaders.
Zahid, meanwhile, was among the Umno leaders who attended PAS' muktamar (congress) in September.
This was two weeks before they inked their pact dubbed Muafakat Nasional.