Majma al-Zawaid — Hadith 11037

Sayyiduna Samurah bin Jundub (may Allah be pleased with him) narrates: At the time of the Conquest, the Prophet (peace and blessings be upon him) said: "This is the year of the Greater Hajj." The Prophet (peace and blessings be upon him) said: "The Hajj of the Muslims and the Hajj of the idolaters coincided over three consecutive days, and the Hajj of the Christians and the Jews coincided over three consecutive days. So in a single year the Hajj of the Muslims, the idolaters, the Christians and the Jews coincided over six consecutive days. Since the heavens and the earth were created, it never coincided like this before this year, and after this year it will never coincide until the Hour is established."
Imam al-Tabarani recorded it, and its narrators have been declared trustworthy; however, its text is munkar (denounced).