The President issues an Ordinance, when the Parliament is not in session, on the _____?

The President issues an Ordinance, when the Parliament is not in session, on the _____?

صدر ایک آرڈیننس جاری کرتے ہیں، جب پارلیمنٹ کا اجلاس نہیں ہوتا، _____ پر؟
Explanation

The President can issue an Ordinance when Parliament is not in session, acting on the formal advice of the Prime Minister.