Israafeel is not mentioned in the quraan, but is mentioned in the following dua’ that Prophet Muhamamd sallalahu alaihi wasalm said when he started the night prayers. I am sorry for not putting the arabic version.
Muslim :: Book 4 : Hadith 1694
‘Abd al-Rahman b. ‘Auf reported: I asked ‘A’isha, the mother of the believers, (to tell me) the words with which the Apostle of Allah (may peace be upon him) commenced the prayer when he got up at night. She said: When he got up at night he would commence his prayer with these words: O Allah, Lord of Gabriel, and Michael, and Israfil, the Creator of the heavens and the earth, Who knows the unseen and the seen; You decide amongst Your servants concerning their differences. Guide me by Your permission, to the truth when the people differ for it is You Who guide whom You will to the Straight Path.
When Allah wants to end the life in this world, a horn will be blown. Everyone will die except for those whom Allah chose.
The horn will be blown again for a prescribed time that only Allah knows, and everyone will rise again from death.
And the Trumpet will be blown, and all who are in the heavens and all who are on the earth will swoon away, except him whom Allâh wills. Then it will blown a second time and behold, they will be standing, looking on (waiting).
Az Zumar 39: 68
The horn will be blown by an angel that Allah has apponted
Prophet Muhammad sallallahu alaihi wasalam said
Indeed the eyesight of the beholder of the Horn is ever-ready since he was given charge of it. He looks steadily towards the throne, fearing (if he blinks) that the command will come before his glance towards Him. His eyes are like two bright planets.
Recorded from al haakim from Abu Hurairah. Declared authentic by albani.
Abu Sa’eed Al Khudri reported that the Prophet salllahu alaihi wasalam said,
How can I feel secure when the holder of the horn has placed the horn against his mouth and has bent his forehead. he listens carefully, awaiting the command to blow so as to blow it.
Recorded by Ahmad, At Tirmidhee and others Declared authentic by Albani.
There is no authentic hadeeth giving the name of the Horn Blowers, but most ulama’ believe that it is Israafeel.
1. Eeman made easy :Knowing the Angels – Muhammad al Jibaly