The top heads of the state urged the public to preserve their peace and unite against the enemy in all forms.
The response comes as the regional state heads to the polling station next Thursday.
The Taliban are also expected to promise to open power-sharing talks with the government and agree to a ceasefire.
In 2013, he refused to swipe t-shirts with an Israeli player in a display of support for Palestinian rights.
The attack was the second in two days as the government tries to stabilize the country's capital.
The surprise decision gives the long-sitting assembly extra time to remain in power and serve.