Former prime minister Nawaz Sharif and Finance Minister Ishaq Dar will return to Pakistan from London on Monday morning, PML-N Senator Mushahidullah Khan confirmed on Sunday.
Nawaz had travelled to London in August to see his wife, Kulsoom Nawaz, who has been undergoing treatment for cancer.
Speaking to GeoNews, Senator Mushahidullah dismissed the accountability court proceedings that were initiated against Nawaz and his family as "minor matters".
He added that he was unaware of whether the former premier will appear before the accountability court on Tuesday.
However, Dar's counsel, Amjad Pervaiz, informed Dawn that the finance minister will appear before the court on Monday.
Authorities have already been directed to produce Dar before an accountability court on September 25. Accountability judge Mohammad Bashir has also warned that non-bailable arrest warrants would be issued if Dar failed to appear before the court.
Earlier this month, the National Accountability Bureau (NAB) had summoned the Sharif family to appear before the accountability courts in connection with the Supreme Court-mandated corruption references on Sept 26.
Despite being summoned by the Bureau a number of times, members of the family have so far failed to appear before the investigators. PML-N leaders have said that Nawaz and his children are likely to skip all proceedings of the accountability court.
Last week, terming the proceedings a "farce," Nawaz's daughter, Maryam, advised him not to appear before the accountability court.
Nawaz "should not be a part of political and personal victimisation in the garb of accountability," Maryam had said.
In July, as it announced the Panama Papers verdict, which sent the former premier packing, the apex court had asked NAB to file references against the Sharif family and the finance minister.