Narrated Shaddad b. Aws:

The Messenger of Allah ﷺ came to a man at al-Baqi' while he was cupping on the 18th of Ramadan ; he (the Prophet) was holding my hand. Thereupon he said: A man who cups and a man who gets himself cupped break their fast.

Abu Dawud said: The narrator Khalid al-Hadhdha' transmitted a similar tradition from Abu Qilabah through a different chain of narrators mentioned by the narrator Ayyub.

حَدَّثَنَا مُوسَى بْنُ إِسْمَاعِيلَ، حَدَّثَنَا وُهَيْبٌ، حَدَّثَنَا أَيُّوبُ، عَنْ أَبِي قِلاَبَةَ، عَنْ أَبِي الأَشْعَثِ، عَنْ شَدَّادِ بْنِ أَوْسٍ، أَنَّ رَسُولَ اللَّهِ ﷺ أَتَى عَلَى رَجُلٍ بِالْبَقِيعِ وَهُوَ يَحْتَجِمُ وَهُوَ آخِذٌ بِيَدِي لِثَمَانَ عَشْرَةَ خَلَتْ مِنْ رَمَضَانَ فَقَالَ " أَفْطَرَ الْحَاجِمُ وَالْمَحْجُومُ " . قَالَ أَبُو دَاوُدَ وَرَوَى خَالِدٌ الْحَذَّاءُ عَنْ أَبِي قِلاَبَةَ بِإِسْنَادِ أَيُّوبَ مِثْلَهُ .