Sayyiduna Samurah bin Jundub (may Allah be pleased with him) narrates: On the day of the Conquest of Makkah, the Prophet (peace and blessings be upon him) said to the people: "This year is the year of the Greater Hajj. In it the Hajj of the Muslims and the Hajj of the polytheists coincided for three consecutive days, and the Hajj of the Jews and the Hajj of the Christians coincided for six consecutive days. Since the heavens and the earth were created until now, they have never coincided, and after this year they will never coincide until the Hour is established."
Al-Bazzar recorded it. Its chain contains Yusuf bin Khalid al-Samti, who is da'if (weak).