Uthman bin Ubaydullah bin Rafi' said that he saw Sayyiduna Abu Sa'id al-Khudri, Sayyiduna Jabir bin Abdullah, Sayyiduna Abdullah bin Umar, Sayyiduna Salamah bin al-Akwa', Sayyiduna Abu Usayd al-Badri, Sayyiduna Rafi' bin Khadij and Sayyiduna Anas bin Malik (may Allah be pleased with them) trimming their moustaches as closely as in shaving, letting their beards grow, and plucking the hair of their armpits.
Hadith Referenceالمعجم الكبير للطبراني / باب الألف / 664