The Prophet ﷺ said, "We are the last (to come) but we will be the foremost on the Day of Resurrection, nations were given the Book (i.e. Scripture) before us, and we were given the Holy Book after them. This (i.e. Friday) is the day about which they differed. So the next day (i.e. Saturday) was prescribed for the Jews and the day after it (i.e. Sunday) for the Christians. It is incumbent on every Muslim to wash his head and body on a Day (i.e. Friday) (at least) in every seven days."  

عَنِ النَّبِيِّ ﷺ قَالَ نَحْنُ الآخِرُونَ السَّابِقُونَ يَوْمَ الْقِيَامَةِ بَيْدَ كُلُّ أُمَّةٍ أُوتُوا الْكِتَابَ مِنْ قَبْلِنَا وَأُوتِينَا مِنْ بَعْدِهِمْ فَهَذَا الْيَوْمُ الَّذِي اخْتَلَفُوا فَغَدًا لِلْيَهُودِ وَبَعْدَ غَدٍ لِلنَّصَارَى عَلَى كُلِّ مُسْلِمٍ فِى كُلِّ سَبْعَةِ أَيَّامٍ يَوْمٌ يَغْسِلُ رَأْسَهُ وَجَسَدَهُ  

The Prophet ﷺ said, "We (Muslims) are the last in the world, but will be foremost on the Day of Resurrection." (Using translation from Bukhārī 6624)  

عَنِ النَّبِيِّ ﷺ قَالَ نَحْنُ الْآخِرُونَ السَّابِقُونَ يَوْمَ الْقِيَامَةِ بَيْدَ أَنَّ كُلَّ أُمَّةٍ أُوتُوا الْكِتَابَ مِنْ قَبْلِنَا وَأُوتِينَاهُ مِنْ بَعْدِهِمْ فَهَذَا الْيَوْمُ الَّذِي اخْتَلَفُوا فِيهِ فَهَدَانَا اللهُ لَهُ فَغَدًا لِلْيَهُودِ وَبَعْدَ غَدٍ لِلنَّصَارَى فَسَكَتَفَقَالَ حَقُّ اللهِ عَلَى كُلِّ مُسْلِمٍ أَنْ يَغْتَسِلَ فِي كُلِّ سَبْعَةِ أَيَّامٍ يَغْسِلُ رَأْسَهُ وَجَسَدَهُ  

Messenger of Allah ﷺ said "We are the last (to come amongst the nations) but (will be) the foremost on the Day of Resurrection. They were given the Holy Scripture before us and we were given the Quran after them. And this was the day (Friday) about which they differed and Allah gave us the guidance (for that). So tomorrow (i.e. Saturday) is the Jews' (day), and the day after tomorrow (i.e. Sunday) is the Christians'." The Prophet ﷺ remained silent (for a while) and then said, "It is obligatory for every Muslim that he should take a bath once in seven days, when he should wash his head and body." (Using translation from Bukhārī 896)   

عَنِ النَّبِيِّ ﷺ قَالَ نَحْنُ الْآخِرُونَ السَّابِقُونَ بَيْدَ أَنَّ كُلَّ أُمَّةٍ أُوتُوا الْكِتَابِ مِنْ قَبْلِنَا وَأُوتِينَاهُ مِنْ بَعْدِهِمْ فَهَذَا الْيَوْمُ الَّذِي اخْتَلَفُوا فِيهِ فَهَدَانَا اللهُ لَهُ فَغَدًا لِلْيَهُودِ وَبَعْدَ غَدٍ لِلنَّصَارَى ثُمَّ سَكَتَ ثُمَّ قَالَ حَقٌّ عَلَى كُلِّ مُسْلِمٍ أَنْ يَغْتَسِلَ فِي كُلِّ سَبْعَةِ أَيَّامٍ يَوْمًا يَغْسِلُ رَأْسَهُ وَجَسَدَهُ  

The Prophet ﷺ said, "We are the last (to come) but we will be the foremost on the Day of Resurrection, nations were given the Book (i.e. Scripture) before us, and we were given the Holy Book after them. This (i.e. Friday) is the day about which they differed. So the next day (i.e. Saturday) was prescribed for the Jews and the day after it (i.e. Sunday) for the Christians. It is incumbent on every Muslim to wash his head and body on a Day (i.e. Friday) (at least) in every seven days." (Using translation from Bukhārī 3486)   

عَنِ النَّبِيِّ ﷺ قَالَ نَحْنُ الْآخِرُونَ السَّابِقُونَ يَوْمَ الْقِيَامَةِ بِيَدِ كُلِّ أُمَّةٍ أُوتُوا الْكِتَابَ مِنْ قَبْلِنَا وَأُوتِينَا مِنْ بَعْدِهِمْ فَهَذَا الْيَوْمُ الَّذِي اخْتَلَفُوا فِيهِ فَهَدَانَا اللهُ فَغَدًا لِلْيَهُودِ وَبَعْدَ غَدٍ لِلنَّصَارَى فَسَكَتَ وَقَالَ حَقٌّ عَلَى كُلِّ مُسْلِمٍ فِي كُلِّ سَبْعَةِ أَيَّامٍ يَوْمًا يَغْسِلُ رَأْسَهُ وَجَسَدَهُ وَرَوَاهُ الْبُخَارِيُّ فِي الصَّحِيحِ عَنْ مُوسَى بْنِ إِسْمَاعِيلَ مُخْتَصَرًا