Abu Bakra reported,

The Prophet ﷺ said, "Time has come full circle to its form on the day Allah created the heavens and the earth. The year is twelve months, four of which are sacred. Three are consecutive, Dhul Qadah, Dhul Hijjah, and Muharram, and there is Rajab of Mudar, which falls between Jumada and Shaban."Then he asked, "Which month is this?"We said, "Allah and His Messenger know best."He remained silent until we thought he would give it a different name. Then he said, "Is it not Dhul Hijjah?"We said, "Yes."He asked, "Which land is this?"We said, "Allah and His Messenger know best."He remained silent until we thought he would give it a different name. Then he said, "Is it not the Sacred City?"We said, "Yes."He asked, "Which day is this?"We said, "Allah and His Messenger know best."He remained silent until we thought he would give it a different name. Then he said, "Is it not the Day of Sacrifice?"We said, "Yes."He said, "Indeed, your blood and your wealth," Muhammad said, and I think he also said, "and your honor, are sacred to one another, like the sanctity of this day of yours, in this land of yours, in this month of yours. You will meet your Lord, and He will question you about your deeds. So do not return after me to misguidance, striking the necks of one another. Let the one present convey this to the one absent, for perhaps some of those to whom it is conveyed will retain it better than some of those who heard it."

عن أبي بكرة

عن النبي ﷺ قال: الزمان قد استدار كهيئته يوم خلق الله السموات والأرض، السنة اثنا عشر شهرا، منها: أربعة حرم، ثلاث متواليات، ذو القعدة، وذو الحجة، والمحرم، ورجب مضر الذي بين جمادى وشعبان، أي شهر هذا؟ قلنا: الله ورسوله أعلم. فسكت حتى ظننا أنه يسميه بغير اسمه. قال: أليس ذا الحجة؟ قلنا: بلى قال: أي بلد هذا؟ قلنا: الله ورسوله أعلم، فسكت حتى ظننا أنه سيسميه بغير اسمه. قال: أليس البلدة؟ قلنا: بلى قال: فأي يوم هذا؟ قلنا: الله ورسوله أعلم. فسكت حتى ظننا أنه سيسميه بغير اسمه قال: أليس يوم النحر؟ قلنا: بلى قال: فإن دماءكم وأموالكم- قال محمد: وأحسبه قال: وأعراضكم عليكم حرام كحرمة يومكم هذا، في بلدكم هذا، في شهركم هذا، وستلقون ربكم فيسألكم عن أعمالكم، ألا فلا ترجعوا بعدي ضلالا، يضرب بعضكم رقاب بعض، ألا ليبلغ الشاهد الغائب، فلعل بعض من يبلغه أن يكون أوعى له من بعض من سمعه.