The name of this day in the heavens is the Day of the...
The name of this day in the heavens is the Day of the Allegiance and Well-Known Pact, and on the Earth this Day is known as the Day of the Promise which is taken and the Day of the Gathering of those who witnessed (the event).” Wasa'il ash-Shi'a, Volume 5, Page 224, Hadith 1 Hadith no.
4: The 'Eid of Wilayat ** ** قِيلَ لاََبِي عَبْدِ اللٌّهِ: لِلْمُؤْمِنِينَ مِنَ الأَعْيَادِ غَيْرُ الْعِيْدَينِ وَ الْجُمُعَةِ؟ قَالَ: نَعَمْ لَهُمْ مَا هَوُ أَعْظَمُ مِنْ هٌذَا يَوْمٌ أُقِيمَ أَمِيـرُ الْمُؤْمِنِينَ فَعَقَدَ لَهُ رَسُولُ اللٌّهِ الْوِلاَيَةَ فِي أَعْنَاقِ الرِّجَالِ وَالنِّسَآءِ بِغَدِيرِ خُمٍّ “It was said to Abi 'Abdillah [Imam Ja'far ibn Muhammad as-Sadiq] (peace be upon him): “Do the true believers have an 'Eid other than the two 'Eid (of al-Adhha and al-Fitr) and the Jumu'ah?” The Imam replied, “Yes, they have one which is even greater than these ones and that is the day when Amirul Mo'minin (peace be upon him) was designated by the Messenger of Allah (blessings of Allah be upon him and his family) with the Wilayah (at Ghadir Khumm) which rests on the necks of all the men and women.” Wasa'il ash-Shi'a, Volume 7, Page 325, Hadith 5 Hadith no.
5: The Day of Renewal of the Oath of Allegiance ** ** عَنْ عَمَّارِ بْنِ حَرِيزٍ قَالَ: دَخَلْتُ عَلى أَبِي عَبْدِ اللٌّهِ فِي يَوْمِ الثَّامِنَ عَشَرَ مِنْ ذِي الْحِجَّةِ فَوَجَدْتُهُ صَائِمًا فَقَالَ لِي: هٌذَا يَوْمٌ عَظِيمٌ عَظَّمَ اللٌّهُ حُرْمَتَهُ عَلى الْمُؤْمِنِينَ وَ أَكْمَلَ لَهُمْ فِيهِ الدِّيْنَ وَ تَمَّمَ عَلَيْهِمُ النِّعْمَةَ وَ جَدَّدَ لَهُمْ مَا أَخَذَ عَلَيْهِمْ مِنَ الْعَهْدِ وَالْمِيثَاقِ It has been narrated from 'Ammar ibn Hariz that he said, “I went to see Abi 'Abdillah [Imam Ja'far ibn Muhammad as-Sadiq] (peace be upon him) on the 18th of Dhul Hijjah and found him fasting.
He said to me, ‘This is a great day. Allah has magnified the sacredness of this day for the true believers and perfected the religion for them and completed upon them the bounties and renewed the pledge which He had taken from them (previously).” Misbahul Mutahajjid, Page 737 Hadith no.
6: The 'Eid of the Heavens قَالَ الرِّضَا حَدَّثَنِي أَبِى، عَنْ أَبِيهِ قَالَ: إِنَّ يَوْمَ الْغَدِيرِ فِي السَّمَآءِ أَشْهَرُ مِنْهُ فِي الأَرْضِ Al-Ridha [Imam 'Ali ibn Musa] (peace be upon him) has said, “My father related to me from his father (peace be upon them) that, ‘The Day of Ghadir is more well known in the heavens than it is on the Earth.’” Misbahul Mutahajjid, Page 737 Hadith no.
✦ ✦ ✦