Fugitive Taleban leader Mullah Omar has dismissed a proposal to hold cross border tribal councils as a "trap", in a message attributed to him.
Mullah Omar has been in hiding since the Taleban were overthrown
"No Muslim will participate in something... created by the aggressors and puppets," he said.
The Pakistan and Afghan governments have discussed holding a cross-border council to end Taleban violence.
Mullah Omar's message, released to a number of news agencies, urged the Taleban never to accept defeat.
Afghanistan accuses Pakistan of allowing the Taleban to operate from its soil.
Pakistan claims it is doing all it can to stop militant activity across the border.
The idea of holding a tribal councils - or jirgas - among Pashtuns living on either side of the Pakistan-Afghan border was discussed in Kabul in December during a visit by Pakistani Foreign Minister Khurshid Kasuri.
But there have been no signs of progress towards convening such councils since then.
'Humiliation and disgrace'
In his message released ahead of the Eid al-Adha religious festival, Mullah Omar said: "The enemy will have to quit the region with humiliation and disgrace.
"Afghans have a history of expelling their enemies as no enemy and invader has quit Afghanistan willingly."
On Thursday evening - before the message was released - Nato and Afghan forces in eastern Khost province killed up to 10 militants after an attack on a police post, Afghan police said.
Khost province's police commander Mohammad Ayub told the Associated Press news agency that Nato forces had called in a helicopter to provide assistance.
Mullah Omar has been in hiding since the Taleban were overthrown in November 2001.
He has a bounty of $10 million on his head.