[Machine] The Messenger of Allah ﷺ delivered a sermon on the day of sacrifice, saying, "Verily, your blood and your wealth are sacred among you, just as this day of yours is sacred in this month of yours, in this land of yours, until the day you meet your Lord. Behold, have I conveyed (the message)?" They replied, "Yes." He said, "O Allah, bear witness. Let the one who is present convey (the message) to the one who is absent, for perhaps the one who receives the message will better comprehend it than the one who hears it." This is a summary.  

خَطَبَنَا رَسُولُ اللهِ ﷺ يَوْمَ النَّحْرِ قَالَ «إِنَّ دِمَاءَكُمْ وَأَمْوَالَكُمْ بَيْنَكُمْ حَرَامٌ كَحُرْمَةِ يَوْمِكُمْ هَذَا فِي شَهْرِكُمْ هَذَا فِي بَلَدِكُمْ هَذَا إِلَى يَوْمِ تَلْقَوْنَ رَبَّكُمْ أَلَا هَلْ بَلَّغْتُ؟» قَالُوا نَعَمْ قَالَ «اللهُمَّ اشْهَدْ يُبَلِّغُ الشَّاهِدُ مِنْكُمُ الْغَائِبَ فَرُبَّ مُبَلَّغٍ أَوْعَى مِنْ سَامِعٍ» مُخْتَصَرٌ  

Once the Prophet ﷺ was riding his camel and a man was holding its rein. The Prophet ﷺ asked, "What is the day today?" We kept quiet, thinking that he might give that day another name. He said, "Isn't it the day of Nahr (slaughtering of the animals of sacrifice)" We replied, "Yes." He further asked, "Which month is this?" We again kept quiet, thinking that he might give it another name. Then he said, "Isn't it the month of Dhul-Hijja?" We replied, "Yes." He said, "Verily! Your blood, property and honor are sacred to one another (i.e. Muslims) like the sanctity of this day of yours, in this month of yours and in this city of yours. It is incumbent upon those who are present to inform those who are absent because those who are absent might comprehend (what I have said) better than the present audience." (Using translation from Bukhārī 67)   

لَمَّا كَانَ ذَاكَ الْيَوْمُ قَعَدَ النَّبِيُّ ﷺ عَلَى بَعِيرِهِ فَقَالَ «أَيُّ يَوْمٍ هَذَا؟» قَالَ فَسَكَتْنَا حَتَّى ظَنَنَّا أَنَّهُ سَيُسَمِّيهِ سِوَى اسْمِهِ فَقَالَ «أَلَيْسَ بِيَوْمِ النَّحْرِ؟» فَقُلْنَا بَلَى قَالَ «فَأَيُّ شَهْرٍ هَذَا؟» قَالَ فَسَكَتْنَا حَتَّى ظَنَنَّا أَنَّهُ سَيُسَمِّيهِ سِوَى اسْمِهِ فَقَالَ «أَلَيْسَ بِذِي الْحِجَّةِ؟» فَقُلْنَا بَلَى قَالَ «فَأَيُّ بَلَدٍ هَذَا؟» قَالَ فَسَكَتْنَا حَتَّى ظَنَنَّا أَنَّهُ سَيُسَمِّيهِ سِوَى اسْمِهِ قَالَ «أَلَيْسَ بِالْبَلْدَةِ؟» فَقُلْنَا بَلَى قَالَ «فَإِنَّ دِمَاءَكُمْ وَأَمْوَالَكُمْ وَأَعْرَاضَكُمْ بَيْنَكُمْ حَرَامٌ كَحُرْمَةِ يَوْمِكُمْ هَذَا فِي شَهْرِكُمْ هَذَا فِي بَلَدِكُمْ هَذَا أَلَا لِيُبَلِّغِ الشَّاهِدُ الْغَائِبَ فَإِنَّ الشَّاهِدَ عَسَى أَنْ يُبَلِّغَهُ مَنْ هُوَ أَوْعَى لَهُ مِنْهُ»