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.
tirmidhi:776Abū Mūsá Muḥammad b. al-Muthanná > Muḥammad b. ʿAbdullāh al-Anṣārī > Ḥabīb b. al-Shahīd > Maymūn b. Mihrān > Ibn ʿAbbās

"The Prophet was cupped while he was fasting."  

الترمذي:٧٧٦حَدَّثَنَا أَبُو مُوسَى مُحَمَّدُ بْنُ الْمُثَنَّى حَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ اللَّهِ الأَنْصَارِيُّ عَنْ حَبِيبِ بْنِ الشَّهِيدِ عَنْ مَيْمُونِ بْنِ مِهْرَانَ عَنِ ابْنِ عَبَّاسٍ

أَنَّ النَّبِيَّ ﷺ احْتَجَمَ وَهُوَ صَائِمٌ هَذَا حَدِيثٌ حَسَنٌ غَرِيبٌ مِنْ هَذَا الْوَجْهِ