Daud Alaihissalam (David)

He was given Zabur (Holy Book from GOD), he read it with so lovely voice, the mountains and birds were following him and repeating his voice, hence he is named the king of mountains, and iron is soft in his hand. His fasting and prayer are so dear to GOD.
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David is one of the few Islamic prophets who received kingship as well. While other prophets preached during the reign of kings, David, in his time, was the king. Thus, he received an extremely large task, of making sure that the people of Israel were not only held in check spiritually but that the country itself remained strong as well. His place as both leader and prophet is revered by all Muslims as one of extremely high rank. The figure of David, together with that of his prophetic son, Solomon, are iconic of people who ruled justly over their land.
God frequently mentions David's high rank as a prophet and messenger in the Quran. He is often mentioned alongside other prophets, to show emphasize how great he was. For example, God says:
And We gave him Isaac and Jacob and guided them, as We had guided Noah before them, and of his descendants, David and Solomon and Job and Joseph and Moses and Aaron. Thus We reward those who are upright and do good.
—Qur'an, sura 6 (Al-An'am), ayah 84 [Quran 6:84]
When the caliph Umar visited Jerusalem, the Patriarch Sophronius accompanied him on the Temple Mount, while he searched for the Mihrab Dawud (David's prayer-niche) to perform a prayer. Later commentators identified this site with the Tower of David. In a hadith, the prayer and fasting of David is mentioned to be dear to God.
Narrated Abdullah bin 'Amr bin Al-'As: Allah's Apostle told me, "The most beloved prayer to Allah is that of David and the most beloved fasts to Allah are those of David. He used to sleep for half of the night and then pray for one third of the night and again sleep for its sixth part and used to fast on alternate days."
—Muhammad al-Bukhari, Sahih al-Bukhari