The word is not in the Quran. Zayd ibn Arqam reports that at the watering place of Khumm, between Mecca and Medina, the Prophet ﷺ gave a sermon in which he urged holding to the Book of Allah and said: “I remind you of Allah concerning the people of my household” (Muslim 2408).
Meaning of the name Ghadeer
Ghadir means a pool, a pond of rainwater that the torrent leaves behind (lexicographers explain it by ghadara, “to leave behind”): in the desert, a place of freshness and life. The name is given to girls in the Gulf and the Middle East. Ghadir Khumm is a watering place between Mecca and Medina, known in Islamic history.
And [warn of] the Day when We will remove the mountains and you will see the earth exposed, and We will gather them and not leave behind from them anyone.
And the record [of deeds] will be placed [open], and you will see the criminals fearful of that within it, and they will say, "Oh, woe to us! What is this book that leaves nothing small or great except that it has enumerated it?" And they will find what they did present [before them]. And your Lord does injustice to no one.
Yazīd ibn Hayyān reported: I went along with Husayn ibn Sabrah and ‘Amr ibn Muslim to Zayd ibn Arqam (may Allah be pleased with him). As we sat by his side, Husayn said to him: "O Zayd, you have acquired a great virtue as you saw the Messenger of Allah (may Allah’s peace and blessings be upon him)…