大方廣佛華嚴經願行觀門骨目 2.42

2.42

入法界品三十九（卷六十。知識雖眾，不出法界。法界無二，任運差別。差別知識為法界用，無差別知識為法界體）

Chapter Thirty-Nine: Entering the Dharmadhātu (Fascicle 60. Although kalyāṇamitras are numerous, they do not go beyond the dharmadhātu. The dharmadhātu is non-dual, naturally differentiating. Differentiated kalyāṇamitras are the function of the dharmadhātu; undifferentiated kalyāṇamitras are the essence of the dharmadhātu.)