is described as the means by which God "strengthened" Jesus, and in the fourth it is identified as the one brought down God's truth to his prophet. As interpreted to refer to the Archangel Gabriel The term Rūḥ al-Qudus is also an epithet referring to the Archangel Gabriel, who is related as the Angel of revelation and was assigned by God to reveal the Qurʼan to the Islamic prophet Muhammad and who delivered the Annunciation to Mary. In the two suras in which the Qur'an refers to the angel Gabriel, it does so by name. However, some ahadith and parts of the Qurʼan may arguably lend support to the alternative view. It appears to be indicated by the Quran in sura Maryam, ayat 17–21, that it was the angel Gabriel who gave to Mary the tidings that she was to have a son as a virgin: It is narrated in hadith that the angel Gabriel accompanied Muhammad during the Mi'raj, an ascension to the heavens in which Muhammad is said to have met other messengers of God and was instructed about the manner of Islamic prayer(). It is also held by Muslims that the angel Gabriel descends to Earth on the night of Laylat al-Qadr, a night in the last ten days of the holy month of Ramadan, which is said to be the night on which the Qurʼan was first revealed. The Arabic phrase al-Qudus () translates into English as "Holiness" or "Sanctity". al-Quddūs "the All-Holy" is one of the 99 Names of God in Islam. In Shia Islam In Shia Islam, rūḥ is described as "a creature (khalq) of God, grander than Gabriel or Michael", who was sent to inform and guide Muhammad and is now with the Imams. In some Shia traditions, ruh al-qudus (spirit of holiness) is one of the five spirits possessed by the Imam. Unlike the other four spirits, it is always vigilant and available to inform the Imam on any issue. There is disagreement on whether ruh is an angel. As soul God is believed to endow humans with rūḥ and nafs , (i.e. ego or psyche). The rūḥ "drives" the nafs, which comprises temporal desires and sensory perceptions. The nafs can assume control of the body if the rūḥ surrenders to bodily urges. The nafs is subject to bodily desire within the sadr (the chest), whereas the rūḥ is a person's immaterial