Asaṁga，一作阿僧佉。無著菩薩之梵名。為法相宗之祖。婆藪槃豆傳曰：「既得大乘空觀，因此為名，名阿僧伽，阿僧伽譯為無著。」玄應音義二十四曰：「阿僧伽：阿此云無，僧伽此云著，短聲呼之。若長聲呼之，即云眾。舊云僧佉，訛也。」三藏法師傳三曰：「城西南五六里，有故伽藍，是阿僧伽菩薩說法處。菩薩夜昇覩史多天，於慈氏菩薩所，受瑜伽論莊嚴論大乘論中邊分別論，晝則下天，為眾說法。阿僧伽亦名無著，即健陀羅國人也。佛滅度後，一千年中，出現於世。從彌沙塞部出家，後信大乘。」
(阿僧) asaṅga,āryāsaṅga, intp. as 無著 unattached, free; lived 'a thousand years after the Nirvāṇa', probably the fourth century A.D., said to be the eldest brother of 天親 Vasubandhu, whom he converted to Mahāyāna. He was first a follower of the Mahīśāsaka school, but founded the Yogācārya or Tantric school with hisYogācārabhūmi-śāstra瑜伽師地論, which in the 三藏傳 is said to have been dictated to him by Maitreya in the Tuṣita heaven, along with the 莊嚴大乘論 and the 中邊分別論. He was a native of Gandhāra, but lived mostly in Ayodhyā (Oudh).
阿僧伽 西域記：唐言無著，是初地菩薩，天親之兄。佛滅千年，從彌沙塞部出家。三藏傳云：夜升睹史陀天，於慈氏所，受瑜伽師地論、莊嚴大乘論、中邊分別論；晝則下天，為眾說法。
梵言呵此言著短聲呼之長聲呼之即云眾舊云僧佉訛也