无垢友是一位印度大圆满法的大师。在赤松德赞执政的8世纪晚期，他不仅翻译、撰写了一些宁玛派最主要的密乘经典，同时也埋下了一些伏藏。历史上，关于他的生平与法教的细节少有确证。他的出生日期、在印度的出生地、父母亲的姓名以及到访西藏的时间等细节尚存争议。根据一些近代宁玛派的教法史，无垢友出生于印度；在游抵中国并师从释迦室利之前，他已经精于研习经藏。他在中国接受了心髓教法并获得证悟，随后回到印度。彼时，他才以超过一百岁的高龄来到西藏。他在西藏教授、翻译了一系列密乘经典并且埋下了一些心髓伏藏。后来回到中国并且成就虹化身。
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