Sunan an-Nasa'i 1367
It was narrated that Abu Hurairah said:
"The Messenger of Allah ﷺ said: 'We are the last (to come) but will be the foremost on the Day of Resurrection, but they were given the Book before us and we were given it after them. They differed concerning this day which Allah (Subhanahu-wa-Taala), the Mighty and Sublime, had prescribed for them and Allah (Subhanahu-wa-Taala), the Mighty and Sublime, guided us to"--meaning Friday--"so the people follow us, the Jews the next day and the Christians the day after that.'"
أَخْبَرَنَا سَعِيدُ بْنُ عَبْدِ الرَّحْمَنِ الْمَخْزُومِيُّ، قَالَ حَدَّثَنَا سُفْيَانُ، عَنْ أَبِي الزِّنَادِ، عَنِ الأَعْرَجِ، عَنْ أَبِي هُرَيْرَةَ، وَابْنُ، طَاوُسٍ عَنْ أَبِيهِ، عَنْ أَبِي هُرَيْرَةَ، قَالَ قَالَ رَسُولُ اللَّهِ ﷺ " نَحْنُ الآخِرُونَ السَّابِقُونَ بَيْدَ أَنَّهُمْ أُوتُوا الْكِتَابَ مِنْ قَبْلِنَا وَأُوتِينَاهُ مِنْ بَعْدِهِمْ وَهَذَا الْيَوْمُ الَّذِي كَتَبَ اللَّهُ عَزَّ وَجَلَّ عَلَيْهِمْ فَاخْتَلَفُوا فِيهِ فَهَدَانَا اللَّهُ عَزَّ وَجَلَّ لَهُ - يَعْنِي يَوْمَ الْجُمُعَةِ - فَالنَّاسُ لَنَا فِيهِ تَبَعٌ الْيَهُودُ غَدًا وَالنَّصَارَى بَعْدَ غَدٍ " .