PAS and its splinter Amanah should be ashamed that they are forsaking their much touted Islamic principles in their open squabble with each other, said Malay rights NGO Perkasa.

"I myself felt uncomfortable (with their statements), though I am not a member of either party. Those from Amanah were formerly PAS members and they fought in the name of Islam.

"The basis of Islam is the ties of brotherhood. We cannot break that relationship,” Perkasa president Ibrahim Ali said.

He said this to Malaysiakini and Free Malaysia Today at the NGO's headquarters in Kuala Lumpur yesterday.

The former Pasir Mas MP was referring specifically to the ceasefire offer from PAS deputy president Tuan Ibrahim Tuan Man to all opposition parties yesterday.

Tuan Ibrahim had said that PAS and Pakatan Harapan parties – DAP, PKR and Amanah – must tolerate one another and find a common ground in their shared objective to topple BN without turning their backs on their own policies.

However, Amanah responded that PAS should not make so many U-turns and be more consistent in its stand.

Ibrahim said that PAS and Amanah, which often spoke about Islam, should not use words like 'ceasefire” as it did not depict their actions in the struggle for Islam.

"If they are from different parties that is another story. But they were from one party that has been talking about Islam since decades ago.

"But in the end, when they split, out come words like ceasefire. Have they no shame?" he asked.

Ibrahim added that the blame rested on both PAS and Amanah, especially on Amanah leader Mohamad Sabu, who at one time was vocal about Islam.

Amanah, formed by the progressives from PAS who left the Islamic party, has been engaged in a war of words in the media with PAS, ever since their split late last year.