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:15634Abū Zakariyyā b. Abū Isḥāq And ʾAbū Bakr b. al-Ḥasan > Abū al-ʿAbbās Muḥammad b. Yaʿqūb > al-Rabīʿ b. Sulaymān > al-Shāfiʿī > Sufyān > Hishām b. ʿUrwah from his father > al-Ḥajjāj b. al-Ḥajjāj Aẓunnuh > Abū Hurayrah > Lā

[Machine] Nothing is prohibited from breastfeeding except what causes harm to the intestines, and likewise.  

البيهقي:١٥٦٣٤أَخْبَرَنَا أَبُو زَكَرِيَّا بْنُ أَبِي إِسْحَاقَ وَأَبُو بَكْرِ بْنُ الْحَسَنِ قَالَا نا أَبُو الْعَبَّاسِ مُحَمَّدُ بْنُ يَعْقُوبَ أنا الرَّبِيعُ بْنُ سُلَيْمَانَ أنا الشَّافِعِيُّ أنا سُفْيَانُ عَنْ هِشَامِ بْنِ عُرْوَةَ عَنْ أَبِيهِ عَنِ الْحَجَّاجِ بْنِ الْحَجَّاجِ أَظُنُّهُ عَنْ أَبِي هُرَيْرَةَ ؓ قَالَ

لَا يُحَرِّمُ مِنَ الرَّضَاعَةِ إِلَّا مَا فَتَقَ الْأَمْعَاءَ وَكَذَلِكَ  

رَوَاهُ الزُّهْرِيُّ عَنْ عُرْوَةَ عَنِ الْحَجَّاجِ الْأَسْلَمِيِّ عَنْ أَبِي هُرَيْرَةَ ؓ مَوْقُوفًا