DAP secretary-general Lim Guan Eng is unperturbed by any alleged evidence PAS research director Mohd Zuhdi Marzuki has that DAP is in cahoots with Israel.

"Let him publish his evidence. We'll see him in court.

"He better make sure he has the proof, because we have never met with the Israelis," Lim told Malaysiakini on the sidelines of the Pakatan Harapan leadership summit in Shah Alam today.

Earlier in his speech, he reiterated that he will sue over allegations that DAP has ties with Israel.

"I will sue for slander, as there is no proof of this whatsoever.

"I have never met with any Israeli leaders, even when I am overseas," Lim added.

When met after a PAS meeting in Gombak today, Mohd Zuhdi told reporters he will take a wait-and-see approach to Lim’s lawsuit threat.

“We will wait and see how it goes,” the PAS research director said briefly.

Last week, Mohd Zuhdi was reported as claiming that Israel had offered DAP US$300 million (approximately RM1.2 billion) during the last general elections and in return, the party had allegedly promised to build an Israeli military base in Port Dickson if it captured Putrajaya.

On Thursday Lim said the claim is "malicious" and challenged PAS to show proof or face legal action.

Mohd Zuhdi responded to Lim’s challenge yesterday saying he did indeed have proof, and will reveal it from time to time.

“I will do it openly from time-to-time.

“In fact, the evidence may not necessarily involve Israel, but also DAP’s relations with other parties that threaten Islam,” Mohd Zuhdi told The Rakyat Post yesterday.

Mohd Zuhdi gained notoriety for a leaked WhatsApp message in July 2014 suggesting PAS could join hands with Umno to take over the Selangor government and silence DAP and non-Muslims.