Sahih
Al Bukhari
صحيح البخاري
Friday Prayer
كتاب الجمعة
Chapter 12: Is the bath necessary for those who do not present themselves for the Jumu'ah prayer
باب هَلْ عَلَى مَنْ لَمْ يَشْهَدِ الْجُمُعَةَ غُسْلٌ مِنَ النِّسَاءِ وَالصِّبْيَانِ وَغَيْرِهِمْ
Sahih Al Bukhari 896, 897
Narrated Abu Huraira
Allah's Messenger (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."
حَدَّثَنَا مُسْلِمُ بْنُ إِبْرَاهِيمَ، قَالَ حَدَّثَنَا وُهَيْبٌ، قَالَ حَدَّثَنَا ابْنُ طَاوُسٍ، عَنْ أَبِيهِ، عَنْ أَبِي هُرَيْرَةَ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " نَحْنُ الآخِرُونَ السَّابِقُونَ يَوْمَ الْقِيَامَةِ، أُوتُوا الْكِتَابَ مِنْ قَبْلِنَا، وَأُوتِينَاهُ مِنْ بَعْدِهِمْ، فَهَذَا الْيَوْمُ الَّذِي اخْتَلَفُوا فِيهِ فَهَدَانَا اللَّهُ، فَغَدًا لِلْيَهُودِ وَبَعْدَ غَدٍ لِلنَّصَارَى ". فَسَكَتَ. ثُمَّ قَالَ " حَقٌّ عَلَى كُلِّ مُسْلِمٍ أَنْ يَغْتَسِلَ فِي كُلِّ سَبْعَةِ أَيَّامٍ يَوْمًا يَغْسِلُ فِيهِ رَأْسَهُ وَجَسَدَهُ ". ثُمَّ قَالَ " حَقٌّ عَلَى كُلِّ مُسْلِمٍ أَنْ يَغْتَسِلَ فِي كُلِّ سَبْعَةِ أَيَّامٍ يَوْمًا يَغْسِلُ فِيهِ رَأْسَهُ وَجَسَدَهُ ".
In-book reference: Sahih Al Bukhari Book 11 Chapter 12 Hadith 1