600. P5246, Vol. 95 136.2.1, VIII.3. Brackets are from Chandrak„rti’s commentary (P5266, Vol. 98 229.5.3). zong-ka-£a quotes this in his Illumination (P6143, Vol. 154 32.4.2). Gyel-tsap quotes this and the next citation in his commentary on the Precious Garland (edition of 78 folios in library of H.H. Dalai Lama), 20b.6-21a.2.