It is narrated from Sayyiduna Abu Rayhanah (may Allah be pleased with him) that we have learned that the Prophet (peace and blessings be upon him) forbade filing the teeth (for the sake of beauty), tattooing the body, plucking hair, reducing prices, putting mouths together in one vessel, joining hair with hair, and the transaction of Mulamasa (a type of sale).
Hadith Referenceمسند احمد / مسند الشاميين / 17208
Hadith Gradingحکم دارالسلام:صحيح لغيره، وهذا الإسناد فيه انقطاع، أبو الحسن الحميري إنما سمعه من صاحبه أبى عامر الحجري، وأبو عامر هذا مجهول الحال