It is Holy duty of Muslims to kill Jews where ever they find them. It is reported in authentic Hadith of Muhammad, where he says that the day of judgement will not come, until Muslims kill all the Jews. Read the Hadith:
Abu Huraira reported Allah’s Messenger (may peace be upon him) as saying: The last hour would not come unless the Muslims will fight against the Jews and the Muslims would kill them until the Jews would hide themselves behind a stone or a tree and a stone or a tree would say: Muslim, or the servant of Allah, there is a Jew behind me; come and kill him; but the tree Gharqad would not say, for it is the tree of the Jews. (Sahih Muslim, Book 41 No 6985)
So if Al-Qaeda is planning to resume their Jihad against Jews, its their Holy duty, commanded by Allah and his peaceful Messenger Prophet Muhammad. Read the complete news from Times of Israel:
A terrorist group affiliated with al-Qaeda that claimed responsibility for a rocket attack on northern Israel last week said it has resumed a jihad, or holy war, against the Jews.
The Lebanon-based Azzam Abdullah Brigades said the rocket attack was carried out “as part of the resumption of the jihad against the Jews.”
“We’ve frozen the activity for the sake of the blessed Syrian revolution,” read the statement posted Monday on the Twitter account of a radical Salafist cleric.
Azzam Abdullah Brigades, an offshoot of al-Qaeda in Iraq, claimed responsibility for firing four long-range missiles into northern Israel, including two that fell in residential areas, causing damage to houses and cars in Nahariya and Acre.
The “green light given by Israel and the Western countries to Hezbollah in the fight against our people in Syria, so that Israel could safeguard its security, will not provide it with security,” the statement said. “Rather, it will bring it closer to the fire of the jihadi fighters and make it much more exposed to them.”
The attack gives the “Jewish conquerors an indication of the quality of rockets in our possession,” it said. “Haifa should be decorated with the most magnificent shrouds to greet our rockets.”
At least one rocket in the attack was intercepted by an Iron Dome anti-missile battery deployed in the area, according to the Israel Defense Forces.