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.
nasai:91Mūsá b. ʿAbd al-Raḥman > Ḥusayn b. ʿAlī > Zāʾidah > Khālid b. ʿAlqamah > ʿAbd Khayr > ʿAlī

"This is how the Prophet of Allah ﷺ purified himself."  

النسائي:٩١أَخْبَرَنَا مُوسَى بْنُ عَبْدِ الرَّحْمَنِ قَالَ حَدَّثَنَا حُسَيْنُ بْنُ عَلِيٍّ عَنْ زَائِدَةَ قَالَ حَدَّثَنَا خَالِدُ بْنُ عَلْقَمَةَ عَنْ عَبْدِ خَيْرٍ عَنْ عَلِيٍّ

أَنَّهُ دَعَا بِوَضُوءٍ فَتَمَضْمَضَ وَاسْتَنْشَقَ وَنَثَرَ بِيَدِهِ الْيُسْرَى فَفَعَلَ هَذَا ثَلاَثًا ثُمَّ قَالَ هَذَا طُهُورُ نَبِيِّ اللَّهِ ﷺ  


See similar narrations below:

Collected by Nasāʾī's Kubrá
nasai-kubra:94Mūsá b. ʿAbd al-Raḥman al-Kūfī > Ḥusayn b. ʿAlī > Zāʾidah > Khālid b. ʿAlqamah > ʿAbd Khayr > ʿAlī

"This is how the Prophet of Allah ﷺ purified himself." (Using translation from Nasāʾī 91)   

الكبرى للنسائي:٩٤أَخْبَرَنَا مُوسَى بْنُ عَبْدِ الرَّحْمَنِ الْكُوفِيُّ قَالَ حَدَّثَنَا حُسَيْنُ بْنُ عَلِيٍّ عَنْ زَائِدَةَ قَالَ حَدَّثَنَا خَالِدُ بْنُ عَلْقَمَةَ عَنْ عَبْدِ خَيْرٍ عَنْ عَلِيٍّ

أَنَّهُ دَعَا بِوَضُوءٍ فَمَضْمَضَ وَاسْتَنْشَقَ وَنَثَرَ بِيَدِهِ الْيُسْرَى فَفَعَلَ ذَلِكَ ثَلَاثًا ثُمَّ قَالَ هَذَا طُهُورُ نَبِيِّ اللهِ ﷺ