The Governance of Sayyiduna Isa (as): Ruling by the Shariah of Muhammad and Not by the Injeel

In the name of Allah, the Most Gracious, the Most Merciful.

All praise is due to Allah, and peace be upon His chosen servants. To proceed: There reached me an inquiry on Thursday, the sixth of Jumada al-Ula in the year eight hundred and eighty-eight (888 AH), phrased as follows: An answer is requested regarding what is mentioned concerning Isa (as) when he descends at the end of time: by what will he rule in this Ummah - by the sacred law of our Prophet or by his own law? And if you say that he will rule by the law of our Prophet, what is his method of ruling by it - is it according to one of the four established schools of jurisprudence (madhhabs), or by his own independent reasoning (ijtihad)? And if you say according to one of the four schools, then which