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Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
bukhari:1930 – Aḥmad b. Ṣāliḥ > Ibn Wahb > Yūnus > Ibn Shihāb > ʿUrwah Waʾabī Bakr > ʿĀʾishah

(At times) in Ramadan the Prophet ﷺ used to take a bath in the morning not because of a wet dream and would continue his fast.  

البخاري:١٩٣٠ – حَدَّثَنَا أَحْمَدُ بْنُ صَالِحٍ حَدَّثَنَا ابْنُ وَهْبٍ حَدَّثَنَا يُونُسُ عَنِ ابْنِ شِهَابٍ عَنْ عُرْوَةَ وَأَبِي بَكْرٍ قَالَتْ

عَائِشَةُ ؓ كَانَ النَّبِيُّ ﷺ يُدْرِكُهُ الْفَجْرُ {جُنُبًا} فِي رَمَضَانَ مِنْ غَيْرِ حُلُمٍ فَيَغْتَسِلُ وَيَصُومُ  

See similar narrations below:

Collected by Muslim, Nasāʾī's Kubrá
muslim:1109b – Ḥarmalah b. Yaḥyá > Ibn Wahb > Yūnus > Ibn Shihāb > ʿUrwah b. al-Zubayr Waʾabī Bakr b. ʿAbd al-Raḥman

The dawn broke upon the Messenger of Allah ﷺ during the Ramadan in a state of junub not because of sexual dream (but on account of intercourse) and he washed himself and observed fast.  

مسلم:١١٠٩b – وَحَدَّثَنِي حَرْمَلَةُ بْنُ يَحْيَى أَخْبَرَنَا ابْنُ وَهْبٍ أَخْبَرَنِي يُونُسُ عَنِ ابْنِ شِهَابٍ عَنْ عُرْوَةَ بْنِ الزُّبَيْرِ وَأَبِي بَكْرِ بْنِ عَبْدِ الرَّحْمَنِ

أَنَّ عَائِشَةَ زَوْجَ النَّبِيِّ ﷺ قَالَتْ قَدْ كَانَ رَسُولُ اللَّهِ ﷺ يُدْرِكُهُ الْفَجْرُ فِي رَمَضَانَ وَهُوَ جُنُبٌ مِنْ غَيْرِ حُلُمٍ فَيَغْتَسِلُ وَيَصُومُ  

nasai-kubra:2961 – al-Rabīʿ b. Sulaymān > Ibn Wahb > Yūnus > Ibn Shihāb > ʿUrwah Waʾabī Bakr b. ʿAbd al-Raḥman > ʿĀʾishah

(At times) in Ramadan the Prophet ﷺ used to take a bath in the morning not because of a wet dream and would continue his fast. (Using translation from Bukhārī 1930)   

الكبرى للنسائي:٢٩٦١ – أَخْبَرَنَا الرَّبِيعُ بْنُ سُلَيْمَانَ قَالَ حَدَّثَنَا ابْنُ وَهْبٍ قَالَ أَخْبَرَنِي يُونُسُ عَنِ ابْنِ شِهَابٍ عَنْ عُرْوَةَ وَأَبِي بَكْرِ بْنِ عَبْدِ الرَّحْمَنِ أَنَّ عَائِشَةَ قَالَتْ

كَانَ رَسُولُ اللهِ ﷺ «يُدْرِكُهُ الْفَجْرُ فِي رَمَضَانَ وَهُوَ جُنُبٌ مِنْ غَيْرِ حُلْمٍ فَيَغْتَسِلُ ثُمَّ يَصُومُ»