According to the Quran, God sent the Quran to the prophet Muhammad through His angel Gabriel (Jibra'il)  and sent a message to most prophets, if not all, revealing their obligations. Gabriel is named numerous times in the Quran (2:97 and 66:4 for example). In 2:97, the Quran expressly narrates: "Who is an enemy to Gabriel! For he it is who hath revealed (this scripture) to thy heart by God's leave, confirming that which was (revealed) before it, and a guidance and glad tidings to believers." Gabriel makes a famous appearance in the Hadith of Gabriel, where he quizzes the Prophet Muhammad on the core tenets of Islam.
In Muslim tradition, Gabriel is considered one of the primary archangels. Exegesis narrates that Muhammad saw Gabriel in his full angelic splendor only twice, the first being when he received his first revelation. Muslims also revere Gabriel for a number of historical events predating the first revelation. Muslims believe that Gabriel was the angel who informed Zachariah of John's birth as well as Mary of the future birth of Jesus and that Gabriel was one of three angels who had earlier informed Abraham of the birth of Isaac. These events of Zachariah and Mary can be found also in the Quran, mentioned in surah Maryam, below are some ayat from the Quran referring to the archangel Gabriel (interpretation of the meanings).
Mary 19:2 [This is] a mention of the mercy of your Lord to His servant Zechariah
19:3 When he called to his Lord a private supplication.
19:4 He said, "My Lord, indeed my bones have weakened, and my head has filled with white, and never have I been in my supplication to You, my Lord, unhappy.
19:5 And indeed, I fear the successors after me, and my wife has been barren, so give me from Yourself an heir
19:6 Who will inherit me and inherit from the family of Jacob. And make him, my Lord, pleasing [to You]."
19:7 [He was told], "O Zechariah, indeed We give you good tidings of a boy whose name will be John. We have not assigned to any before [this] name."
19:8 He said, "My Lord, how will I have a boy when my wife has been barren and I have reached extreme old age?"
19:9 [An angel] said, "Thus [it will be]; your Lord says, 'It is easy for Me, for I created you before, while you were nothing.' "
19:10 [Zechariah] said, "My Lord, make for me a sign." He said, "Your sign is that you will not speak to the people for three nights, [being] sound." When the angel Gabriel appeared to Mary:
19:16 And mention, [O Muhammad], in the Book [the story of] Mary, when she withdrew from her family to a place toward the east.
19:17 And she took, in seclusion from them, a screen. Then We sent to her Our Angel, and he represented himself to her as a well-proportioned man.
19:18 She said, "Indeed, I seek refuge in the Most Merciful from you, [so leave me], if you should be fearing of Allah ."
19:19 He said, "I am only the messenger of your Lord to give you [news of] a pure boy."
19:20 She said, "How can I have a boy while no man has touched me and I have not been unchaste?"
19:21 He said, "Thus [it will be]; your Lord says, 'It is easy for Me, and We will make him a sign to the people and a mercy from Us. And it is a matter [already] decreed.' "