US intelligence agencies tracked the recorded audio message of Late Al Qaeda leader Osama bin Laden's youngest son Hamza bin Laden, in that message “he urged Muslims to liberate the holy city of Jerusalem.”

"Jerusalem is a bride whose blood is our dowry," Hamza bin Laden purportedly said in the online message quoted by Search For International terrorist Entities(SITE).

"The fight to free Jerusalem is a battle between faith and unbelief that requires the unity of the Ummah (the Muslim community)," SITE quoted the message.

“The Islamic umma (nation) focused on jihad in Al-Sham (Syria) and unite the ranks of mujahedeen,” said 23-year-old Hamza in an audio message.

In an audio message he said, “There is no longer an excuse for those who insist on division and disputes now that the whole world has mobilized against Muslim”.

His undated message comes after al-Qaeda leader Ayman al-Zawahiri also urged jihadists in Syria to unite, despite his continued rejection of the rival Islamic State (IS) group and its proclaimed caliphate.

Zawahiri said in an audio message that,“The matter of unity today is one of life and death, according to SITE Intelligence monitoring group he added, “Either you unite to live as Muslims with dignity, or you bicker and separate and so are eaten one by one”.

Five months ago, SITE's director Rita Katz claimed the recorded message, "The liberation of Palestinian land has been brought much closer by the Syrian revolution".

The recorded message was released a day after, Al Qaeda leader, the Egyptian-born Ayman al-Zawahiri allegedly urged rival terrorist groups in Syria to unite or risk death.

Al-Qaeda’s Syria affiliate Al-Nusra Front is a rival of Islamic State(IS), which is an  al-Qaeda offshoot whose leader Abu Bakr al-Baghdadi in 2014 declared an Islamic caliphate across the seized territory in Iraq and Syria.

Laden’s son said Syria is the “best battlefield” leading to “liberating Al-Quds”, the Arabic name for Jerusalem.

“The road to liberating Palestine is today much shorter compared to before the blessed Syrian revolution,” he said.

US intelligence officials have said that Hamza was the favourite son of the 9/11 mastermind who had been grooming him to take over as  al-Qaeda’s leader.

Mayuka.