Hadith 1967

وَقَدْ رُوِيَ عَنِ الْمُعْتَمِرِ بْنِ سُلَيْمَانَ ، عَنْ حُمَيْدٍ ، عَنْ أَبِي الْمُتَوَكِّلِ ، عَنْ أَبِي سَعِيدٍ : " رَخَّصَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فِي الْقُبْلَةِ لِلصَّائِمِ ، وَالْحِجَامَةِ لِلصَّائِمِ " . حَدَّثَنَا يَعْقُوبُ بْنُ إِبْرَاهِيمَ الدَّوْرَقِيُّ ، حَدَّثَنَا الْمُعْتَمِرُ ، وَالْحِجَامَةِ لِلصَّائِمِ : إِنَّمَا هُوَ مِنْ قَوْلِ أَبِي سَعِيدٍ الْخُدْرِيِّ ، وَهَذِهِ اللَّفْظَةُ عَنِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ ، أُدْرِجَ فِي الْخَبَرِ . لَعَلَّ الْمُعْتَمِرَ حَدَّثَ بِهَذَا حِفْظًا ، فَأَدْرَجَ هَذِهِ الْكَلِمَةَ فِي خَبَرِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ , أَوْ قَالَ : قَالَ أَبُو سَعِيدٍ : وَرَخَّصَ فِي الْحِجَامَةِ لِلصَّائِمِ ، فَلَمْ يُضْبَطْ عَنْهُ : قَالَ أَبُو سَعِيدٍ : فَأُدْرِجَ هَذَا الْقَوْلُ فِي الْخَبَرِ
The Imam says that these words are a concession for a fasting person to have cupping done. The words of Sayyiduna Abu Sa'id Khudri (may Allah be pleased with him) are those which have been added to the hadith, and these are not the words of the Prophet Muhammad (peace and blessings be upon him). Perhaps the narrator Ta'tamar narrated this hadith from his memory, so these words were included in the hadith of the Prophet Muhammad (peace and blessings be upon him), or while narrating the hadith, he said these words that Sayyiduna Abu Sa'id (may Allah be pleased with him) said that a concession was given to the fasting person to have cupping done. So the students may not have written the words "Sayyiduna Abu Sa'id (may Allah be pleased with him) said" properly, and thus these words were added to the hadith.
Hadith Reference صحيح ابن خزيمه / 1967
Hadith Takhrij اسناده صحيح