Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
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:217 – Yaʿqūb b. Ibrāhīm > Ismāʿīl b. Ibrāhīm > Rawḥ b. al-Qāsim > ʿAṭāʾ b. Abū Maymūnah > Anas b. Mālik

Whenever the Prophet ﷺ went to answer the call of nature, I used to bring water with which he used to clean his private parts.  

البخاري:٢١٧ – حَدَّثَنَا يَعْقُوبُ بْنُ إِبْرَاهِيمَ قَالَ حَدَّثَنَا إِسْمَاعِيلُ بْنُ إِبْرَاهِيمَ قَالَ حَدَّثَنِي رَوْحُ بْنُ الْقَاسِمِ قَالَ حَدَّثَنِي عَطَاءُ بْنُ أَبِي مَيْمُونَةَ عَنْ أَنَسِ بْنِ مَالِكٍ قَالَ

كَانَ النَّبِيُّ ﷺ إِذَا تَبَرَّزَ لِحَاجَتِهِ أَتَيْتُهُ بِمَاءٍ فَيَغْسِلُ بِهِ  

See similar narrations below:

Collected by Muslim, Aḥmad
muslim:271b – Zuhayr b. Ḥarb And ʾAbū Kurayb Wa-al-Lafẓ Lizuhayr > Ismāʿīl / Ibn ʿUlayyah > Rawḥ b. al-Qāsim > ʿAṭāʾ b. Abū Maymūnah > Anas b. Mālik

The Messenger of Allah ﷺ went to a far-off place in the desert (hidden from the sight of human beings) for relieving himself. Then I brought water for him and he cleansed himself.  

مسلم:٢٧١b – وَحَدَّثَنِي زُهَيْرُ بْنُ حَرْبٍ وَأَبُو كُرَيْبٍ وَاللَّفْظُ لِزُهَيْرٍ حَدَّثَنَا إِسْمَاعِيلُ يَعْنِي ابْنَ عُلَيَّةَ حَدَّثَنِي رَوْحُ بْنُ الْقَاسِمِ عَنْ عَطَاءِ بْنِ أَبِي مَيْمُونَةَ عَنْ أَنَسِ بْنِ مَالِكٍ قَالَ

كَانَ رَسُولُ اللَّهِ ﷺ يَتَبَرَّزُ لِحَاجَتِهِ فَآتِيهِ بِالْمَاءِ فَيَتَغَسَّلُ بِهِ  

ahmad:12100 – Ismāʿīl b. Ibrāhīm > Rawḥ b. al-Qāsim > ʿAṭāʾ b. Abū Maymūnah > Anas b. Mālik

Whenever the Prophet ﷺ went to answer the call of nature, I used to bring water with which he used to clean his private parts. (Using translation from Bukhārī 217)  

أحمد:١٢١٠٠ – حَدَّثَنَا إِسْمَاعِيلُ بْنُ إِبْرَاهِيمَ حَدَّثَنَا رَوْحُ بْنُ الْقَاسِمِ عَنْ عَطَاءِ بْنِ أَبِي مَيْمُونَةَ عَنْ أَنَسِ بْنِ مَالِكٍ قَالَ

كَانَ رَسُولُ اللهِ ﷺ إِذَا تَبَرَّزَ لِحَاجَتِهِأَتَيْتُهُ بِمَاءٍ فَيَغْسِلُ بِهِ