Lebanon

A Representative may combine the representative and the ministerial functions. Ministers may be selected from the members of the Chamber of Deputies or from persons outside it, or from both. (Art. 28)

…
2. The President of the Republic appoints the Head of Government in charge of consulting with the President of the Chamber of Deputies with respect to representative mandatory consultations, the results of which are officially reported to him.
3. He promulgates a decree appointing the Prime Minister separately.
4. He promulgates with the consent of the Prime Minister, the decree to form the Government, and the decrees to accept the resignation of Ministers or their dismissal.
… (Art. 53)

The Prime Minister is the Head of Government. He represents it, speaks in its name, and is responsible for executing the public policy made by the Council of Ministers.
… (Art. 64)

The executive power is vested in the Council of Ministers,
… (Art 65)

Only Lebanese may assume the ministry, and no one may assume the ministry unless he meets the requirements which qualify him for representation.
… (Art. 66)