Jamiat Ulema-e-Islam-Fazl (JUI-F) supremo Maulana Fazlur Rehman confirmed the contacts with the Pakistan Tehreek-e-Insaf (PTI) on Thursday.
Speaking exclusively to Samaa TV, Rehman said: "The PTI leaders have said we are coming. They [PTI leaders] are welcome here."
"We do not know what the PTI leaders are going to talk about," he said.
Earlier it was reported that the PTI leadership will meet Rehman.
A delegation led by Barrister Gohar will meet Rehman tonight.
The PTI delegation will include Asad Qaiser, Barrister Saif, and Akhund Zada Hussain Ahmed.
– Fazl announces to sit in opposition –
Rehman announced on Wednesday that his party will sit in the opposition.
Addressing the press conference in Islamabad, Rehman said: "The JUI-F Central Executive Committee (CEC), which lasted two days, had denounced the poll results.".
Ruling out the possibility of an alliance with the political parties, Rehman said: "We are not going to have any alliance with any party."
He vowed that his party would continue to play its role in parliament. Rehman had also invited PML-N supremo Nawaz Sharif to join hands with him in opposition.
"We are not subordinate to the PML-N and PPP," he said.