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
nasai-kubra:40 – Isḥāq b. Ibrāhīm > Abū Muʿāwiyah > al-Aʿmash > Ibrāhīm > ʿAbd al-Raḥman b. Yazīd > Salmān > Lah a man In Ṣāḥibakum Layuʿallimukum Ḥattá al-Khirāʾah > Ajal Nahānā

[Machine] To face the Qibla with feces or urine or to clean ourselves with our oaths or to suffice with less than three stones.  

الكبرى للنسائي:٤٠ – أَخْبَرَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ قَالَ أَخْبَرَنَا أَبُو مُعَاوِيَةَ قَالَ حَدَّثَنَا الْأَعْمَشُ عَنْ إِبْرَاهِيمَ عَنْ عَبْدِ الرَّحْمَنِ بْنِ يَزِيدَ عَنْ سَلْمَانَ قَالَ قَالَ لَهُ رَجُلٌ إِنَّ صَاحِبَكُمْ لَيُعَلِّمُكُمْ حَتَّى الْخِرَاءَةَ قَالَ أَجَلْ «§نَهَانَا

أَنْ نَسْتَقْبِلَ الْقِبْلَةَ بِغَائِطٍ أَوْ بَوْلٍ أَوْ نَسْتَنْجِيَ بِأَيْمَانِنَا أَوْ نَكْتَفِي بِأَقَلِّ مِنْ ثَلَاثَةِ أَحْجَارٍ»  

See similar narrations below:

Collected by Nasāʾī
nasai:41 – Isḥāq b. Ibrāhīm > Abū Muʿāwiyah > al-Aʿmash > Ibrāhīm > ʿAbd al-Raḥman b. Yazīd > Salmān > Lah a man In Ṣāḥibakum Layuʿallimukum Ḥattá al-Khirāʾah > Ajal Nahānā

"Your companion (meaning, the Prophet ﷺ) even teaches you how to go to the toilet!" He said: "Yes, he forbade us from facing the Qiblah when defecating or urinating, or cleaning ourselves with out right hands, or to use less than three stones."  

النسائي:٤١ – أَخْبَرَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ قَالَ أَنْبَأَنَا أَبُو مُعَاوِيَةَ قَالَ حَدَّثَنَا الأَعْمَشُ عَنْ إِبْرَاهِيمَ عَنْ عَبْدِ الرَّحْمَنِ بْنِ يَزِيدَ عَنْ سَلْمَانَ قَالَ قَالَ

لَهُ رَجُلٌ إِنَّ صَاحِبَكُمْ لَيُعَلِّمُكُمْ حَتَّى الْخِرَاءَةَ قَالَ أَجَلْ نَهَانَا أَنْ نَسْتَقْبِلَ الْقِبْلَةَ بِغَائِطٍ أَوْ بَوْلٍ أَوْ نَسْتَنْجِيَ بِأَيْمَانِنَا أَوْ نَكْتَفِيَ بِأَقَلَّ مِنْ ثَلاَثَةِ أَحْجَارٍ