Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) narrates that the Prophet (peace and blessings be upon him) had cupping done while he (peace and blessings be upon him) was fasting.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصيام / 8263
Miqsam narrates from Ibn Abbas (may Allah be pleased with them both) that the Prophet (peace and blessings be upon him) had cupping done between Makkah and Madinah while he (peace and blessings be upon him) was fasting and in the state of ihram.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصيام / 8264
Humayd said: I heard Thabit al-Bunani asking Sayyiduna Anas bin Malik (may Allah be pleased with him): Did you dislike cupping for the fasting person? He said: No, except because of the weakness (it causes).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصيام / 8265
Abd al-Rahman bin Abi Layla narrates from a man among the Companions of Muhammad (peace and blessings be upon him, and may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) forbade the fasting person from continuous fasting (wisal) and from cupping, out of consideration for his Companions, and he did not make them unlawful. It was said to him (peace and blessings be upon him): But you yourself fast continuously? So he (peace and blessings be upon him) said: "I spend the day with my Lord feeding me and giving me drink."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصيام / 8266
Qatadah (may Allah have mercy on him) narrates from Abu al-Mutawakkil (may Allah have mercy on him) that Abu Sa'id (may Allah be pleased with him) said: Cupping (being done) for the fasting person is disliked only out of fear of weakness.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصيام / 8267
Sayyiduna Abu Sa'id (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) "permitted kissing and cupping for the fasting person."
Ali (al-Daraqutni) said: All of them are thiqat (trustworthy), and others besides Mu'tamir narrate it mawquf (as the Companion's own words). It has also been narrated marfu' from Abu al-Mutawakkil through another route.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصيام / 8268
Sayyiduna Abu Sa'id al-Khudri (may Allah be pleased with him) narrates that the Prophet (peace and blessings be upon him) "permitted cupping for the fasting person."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصيام / 8269
Ishaq al-Azraq (may Allah have mercy on him) narrated that Sufyan (may Allah have mercy on him) narrated a similar hadith.
Ali (al-Daraqutni) said: All of them are thiqat (trustworthy); al-Ashja'i also narrated it, and he is among the trustworthy. Except that al-Ashja'i said in his narration: "permission was given" (rukhkhisa).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصيام / 8270
Sayyiduna Abu Sa'id (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said: "The fast is not broken for one who vomits, nor for one who has cupping done, nor for one who has a wet dream."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصيام / 8272
Sayyiduna Abu Sa'id al-Khudri (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said: "Three things do not break the fast of a fasting person: vomiting, cupping and a wet dream."
This is how Abd al-Rahman bin Zayd narrated it, and he is not strong.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصيام / 8273
One of the Companions of the Prophet (peace and blessings be upon him) (may Allah be pleased with him) narrates from the Prophet (peace and blessings be upon him) that he said: "The one who vomits has not broken his fast, nor the one who has been cupped, nor the one who has had a wet dream."
(The correct version is the narration of Sufyan al-Thawri and others. A narration like that of Abd al-Rahman bin Zayd has been reported from al-Thawri, but it is not sahih (authentic). The concession in this matter has been narrated to us from Sa'd bin Abi Waqqas, Abdullah bin Mas'ud, Abdullah bin Abbas, Abdullah bin Umar, al-Husayn bin Ali, Zayd bin Arqam, Aishah bint al-Siddiq and Umm Salamah (may Allah be pleased with them all).)
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصيام / 8274