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:2571 – Khālid b. Makhlad > Sulaymān b. Bilāl > Abū Ṭawālah Āsmuh ʿAbdullāh b. ʿAbd al-Raḥman > Anas

Once Messenger of Allah ﷺ visited us in this house of ours and asked for something to drink. We milked one of our sheep and mixed it with water from this well of ours and gave it to him. Abu Bakr was sitting on his left side and ʿUmar in front of him and a bedouin on his right side. When Messenger of Allah ﷺ finished, ʿUmar said to Messenger of Allah ﷺ "Here is Abu Bakr." But Messenger of Allah ﷺ gave the remaining milk to the bedouin and said twice, "The (persons on the) right side! So, start from the right side." Anas added, "It is a Sunna (the Prophet's traditions)" and repeated it thrice.  

البخاري:٢٥٧١ – حَدَّثَنَا خَالِدُ بْنُ مَخْلَدٍ حَدَّثَنَا سُلَيْمَانُ بْنُ بِلاَلٍ قَالَ حَدَّثَنِي أَبُو طَوَالَةَ اسْمُهُ عَبْدُ اللَّهِ بْنُ عَبْدِ الرَّحْمَنِ قَالَ

سَمِعْتُ أَنَسًا ؓ يَقُولُ أَتَانَا رَسُولُ اللَّهِ ﷺ فِي دَارِنَا هَذِهِ فَاسْتَسْقَى فَحَلَبْنَا لَهُ شَاةً لَنَا ثُمَّ شُبْتُهُ مِنْ مَاءِ بِئْرِنَا هَذِهِ فَأَعْطَيْتُهُ وَأَبُو بَكْرٍ عَنْ يَسَارِهِ وَعُمَرُ تُجَاهَهُ وَأَعْرَابِيٌّ عَنْ يَمِينِهِ فَلَمَّا فَرَغَ قَالَ عُمَرُ هَذَا أَبُو بَكْرٍ فَأَعْطَى الأَعْرَابِيَّ ثُمَّ قَالَ الأَيْمَنُونَ الأَيْمَنُونَ أَلاَ فَيَمِّنُوا قَالَ أَنَسٌ فَهْىَ سُنَّةٌ فَهْىَ سُنَّةٌ ثَلاَثَ مَرَّاتٍ  

See similar narrations below:

Collected by Muslim
muslim:2029c – [Chain 1] Yaḥyá b. Ayyūb And Qutaybah Waʿalī b. Ḥujr > Ismāʿīl Wahū Ibn Jaʿfar > ʿAbdullāh b. ʿAbd al-Raḥman b. Maʿmar b. Ḥazm Abū Ṭuwālah al-Anṣārī > Anas b. Mālik [Chain 2] ʿAbdullāh b. Maslamah b. Qaʿnab > Sulaymān / Ibn Bilāl > ʿAbdullāh b. ʿAbd al-Raḥman > Anas b. Mālik

Messenger of Allah ﷺ came to our house and he asked for a drink. We milked a goat for him and then mixed it (the milk) with the water of this well of mine. I gave it to Messenger of Allah ﷺ and he drank it, while Abu Bakr was on his left and 'Umar was in front of him, and a desert Arab was on his right. When Messenger of Allah ﷺ had finished the drink, Umar said: Messenger of Allah, here is Abu Bakr, give him to drink; but Messenger of Allah ﷺ gave it to the desert Arab and he left out Abu Bakr and Umar. And Messenger of Allah ﷺ said: Those on the right, those on the right, those on the right (deserve preference). Anas said: This is the Sunnah, this is the Sunnah, this is the Sunnah.  

مسلم:٢٠٢٩c – حَدَّثَنَا يَحْيَى بْنُ أَيُّوبَ وَقُتَيْبَةُ وَعَلِيُّ بْنُ حُجْرٍ قَالُوا حَدَّثَنَا إِسْمَاعِيلُ وَهُوَ ابْنُ جَعْفَرٍ عَنْ عَبْدِ اللَّهِ بْنِ عَبْدِ الرَّحْمَنِ بْنِ مَعْمَرِ بْنِ حَزْمٍ أَبِي طُوَالَةَ الأَنْصَارِيِّ أَنَّهُ سَمِعَ أَنَسَ بْنَ مَالِكٍ ح وَحَدَّثَنَا عَبْدُ اللَّهِ بْنُ مَسْلَمَةَ بْنِ قَعْنَبٍ وَاللَّفْظُ لَهُ حَدَّثَنَا سُلَيْمَانُ يَعْنِي ابْنَ بِلاَلٍ عَنْ عَبْدِ اللَّهِ بْنِ عَبْدِ الرَّحْمَنِ أَنَّهُ سَمِعَ أَنَسَ بْنَ مَالِكٍ يُحَدِّثُ قَالَ

أَتَانَا رَسُولُ اللَّهِ ﷺ فِي دَارِنَا فَاسْتَسْقَى فَحَلَبْنَا لَهُ شَاةً ثُمَّ شُبْتُهُ مِنْ مَاءِ بِئْرِي هَذِهِ قَالَ فَأَعْطَيْتُ رَسُولَ اللَّهِ ﷺ فَشَرِبَ رَسُولُ اللَّهِ ﷺ وَأَبُو بَكْرٍ عَنْ يَسَارِهِ وَعُمَرُ وُجَاهَهُ وَأَعْرَابِيٌّ عَنْ يَمِينِهِ فَلَمَّا فَرَغَ رَسُولُ اللَّهِ ﷺ مِنْ شُرْبِهِ قَالَ عُمَرُ هَذَا أَبُو بَكْرٍ يَا رَسُولَ اللَّهِ يُرِيهِ إِيَّاهُ فَأَعْطَى رَسُولُ اللَّهِ ﷺ الأَعْرَابِيَّ وَتَرَكَ أَبَا بَكْرٍ وَعُمَرَ وَقَالَ رَسُولُ اللَّهِ ﷺ الأَيْمَنُونَ الأَيْمَنُونَ الأَيْمَنُونَ قَالَ أَنَسٌ فَهِيَ سُنَّةٌ فَهِيَ سُنَّةٌ فَهِيَ سُنَّةٌ