Sahih (Sahih Muslim)
حَدَّثَنَا ابْنُ أَبِي عُمَرَ، حَدَّثَنَا مَرْوَانُ، - يَعْنِي الْفَزَارِيَّ - عَنْ حُمَيْدٍ، قَالَ سُئِلَ أَنَسٌ عَنْ كَسْبِ الْحَجَّامِ، فَذَكَرَ بِمِثْلِهِ غَيْرَ أَنَّهُ قَالَ " إِنَّ أَفْضَلَ مَا تَدَاوَيْتُمْ بِهِ الْحِجَامَةُ وَالْقُسْطُ الْبَحْرِيُّ وَلاَ تُعَذِّبُوا صِبْيَانَكُمْ بِالْغَمْزِ " .
Rumaid reported that Anas b. Malik (Allah be pleased with him) has asked about the earnings of a cupper. Then (the above-mentioned hadith was reported but with this addition) that he said:The best treatment which you get is cupping. or aloeswood and do not torture your children by pressing their uvula