Hazrat Mahdi (pbuh) in the preeminent Torah scholar Maimonides' Mishnah Torah

Maimonides, Mishnah Torah, The Laws of the Kings and Their Wars, Chapter 11 (based on the Torah)

“In the future, the Messianic king will arise and renew the Davidic dynasty, restoring it to its initial sovereignty. He will build the Temple.”

“The Torah testified to his coming.” The Mahdi. The Torah. He is also in the hadiths of our Prophet (pbuh).

“One should not presume that the Messianic king must work miracles and wonders, bring about new phenomena in the world, resurrect the dead, or perform other similar deeds.” It says this is very definitely not true.

Halaka, chapter 4

“He will then improve the entire world, motivating all the nations to serve God together..”

 “When the true Messianic king will arise and prove successful, his position becoming exalted and uplifted, they will all return and realize that their ancestors endowed them with a false heritage..” The Mahdi will put these things right, it says.

“David and all Israel were celebrating with all their might before the Lord, with castanets, harps, lyres, timbrels, sistrums and cymbals.” (2 Samuel 6:5) The Prophet David (pbuh) also sings songs. Cymbals, tambourines and drums make a lot of noise.

“Now David was clothed in a robe of fine linen, as were all the Levites who were carrying the ark [of the covenant], and as were the musicians, and Kenaniah, who was in charge of the singing of the choirs.” Shirts of fine linen. Linen is good. “David also wore a linen ephod.  So all Israel brought up the ark of the covenant of the Lord with shouts, with the sounding of rams’ horns and trumpets, and of cymbals,” trumpets and drums, in other words. “and the playing of lyres and harps.” (1 Chronicles 15:16) This Ark of the Covenant will soon be found.

“As the ark of the covenant of the Lord was entering the City of David, Michal daughter of Saul watched from a window. And when she saw King David dancing and celebrating,” King David gave himself up to the music and danced there. “Sing for joy to God our strength;” in other words, we act with the power of Allah, he says. “shout aloud”, he says the joy of faith must appear. “to the God of Jacob! Begin the music, strike the timbrel, play the melodious harp and lyre.” (Psalm, 81:1,2)

“I will praise You with the harp for Your faithfulness, my God; I will sing praise to You with the lyre…” There is also music in Mevlevi ceremonies. “My lips will shout for joy when I sing praise to You— I whom You have delivered my tongue will tell of Your righteous acts all day long…” (Psalm, 71:22-24)

“Let his faithful people rejoice in this honor and sing for joy on their beds.” (Psalm, 149:5) Let them experience that joy even in their beds, it says.