Hezbollah has new evidence about the murder of Hariri that, if revealed, would be damaging to Al-Saud, Saudi Arabia's royal family, the official website of Lebanon's Free Patriotic Movement party said on Sunday.
Nasrallah's commitment to maintain Lebanon's peace and unity has forced him to not to disclose the evidence, the report said.
“King Abdullah has allocated $500 million... to finance propaganda against Hezbollah, but Saudi Arabia's objective is not only to ruin the reputation of Hezbollah... but to tarnish the image of Seyyed Hassan Nasrallah,” the Lebanese website quoted a Saudi Arabian opposition official as saying.
Rafiq Hariri, the father of incumbent Lebanese Prime Minister Saad Hariri, was killed in a massive car bomb explosion in Beirut in February 2005.
The Special Tribunal for Lebanon, which was set up by the UN and the Lebanese government in May 2007, is investigating the assassination.
Last week, Nasrallah presented evidence of Israeli involvement in the assassination of Hariri in a massive car bomb explosion in 2005.
The evidence included footage from Israeli spy drones of routes used by Hariri and recorded confessions by Israeli spies substantiating that the assassination of Hariri was carried out on orders from Tel Aviv.