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.
bayhaqi:746Abū ʿAlī al-Rūdhbārī > Abū Bakr b. Dāsah > Abū Dāwud > ʿUthmān b. Abū Shaybah > Zayd b. al-Ḥubāb > Muṭīʿ b. Rāshid > Tawbah al-ʿAnbarī > Anas b. Mālik

[Machine] He heard Anas ibn Malik say: "The Messenger of Allah ﷺ drank milk, yet he did not rinse his mouth or perform ablution, and then he prayed." Zaid said: "Shu'bah informed me of this sheikh and we were narrated from Ikrimah who narrated from Ibn Abbas that he said: 'If it were not for the inconvenience, I would not have refrained from rinsing my mouth.'"  

البيهقي:٧٤٦أَخْبَرَنَا أَبُو عَلِيٍّ الرُّوذْبَارِيُّ أنا أَبُو بَكْرِ بْنُ دَاسَةَ نا أَبُو دَاوُدَ نا عُثْمَانُ بْنُ أَبِي شَيْبَةَ عَنْ زَيْدِ بْنِ الْحُبَابِ عَنْ مُطِيعِ بْنِ رَاشِدٍ عَنْ تَوْبَةَ الْعَنْبَرِيِّ

أَنَّهُ سَمِعَ أَنَسَ بْنَ مَالِكٍ يَقُولُ إِنَّ رَسُولَ اللهِ ﷺ شَرِبَ لَبَنًا فَلَمْ يُمَضْمِضْ وَلَمْ يَتَوَضَّأْ وَصَلَّى قَالَ زَيْدٌ دَلَّنِي شُعْبَةُ عَلَى هَذَا الشَّيْخِ وَرُوِّينَا عَنْ عِكْرِمَةَ عَنِ ابْنِ عَبَّاسٍ أَنَّهُ قَالَ لَوْلَا التَّلَمُّظُ مَا بَالَيْتُ أَنْ لَا أُمَضْمِضَ  


See similar narrations below:

Collected by Abū Dāwūd
abudawud:197ʿUthmān b. Abū Shaybah > Zayd b. al-Ḥubāb > Muṭīʿ b. Rāshid > Tawbah al-ʿAnbarī > Anas b. Mālik

The Messenger of Allah ﷺ drank some milk and he did not rinse his mouth nor did he perform ablution, and he offered the prayer.  

أبو داود:١٩٧حَدَّثَنَا عُثْمَانُ بْنُ أَبِي شَيْبَةَ عَنْ زَيْدِ بْنِ الْحُبَابِ عَنْ مُطِيعِ بْنِ رَاشِدٍ عَنْ تَوْبَةَ الْعَنْبَرِيِّ

أَنَّهُ سَمِعَ أَنَسَ بْنَ مَالِكٍ يَقُولُ إِنَّ رَسُولَ اللَّهِ ﷺ شَرِبَ لَبَنًا فَلَمْ يُمَضْمِضْ وَلَمْ يَتَوَضَّأْ وَصَلَّى قَالَ زَيْدٌ دَلَّنِي شُعْبَةُ عَلَى هَذَا الشَّيْخِ