 One of the most influential, and controversial, passages in the BCA is verse IX.139 (Vaidya 1988: 272–73; C&amp;S: 129). The great Tibetan philosopher Tsong kha pa cited this passage as a crucial Indic precedent for the doctrine of “identifying the object of negation”, which plays a central role in his reading of Madhyamaka (Tsong kha pa, GT: 126). But modern scholars disagree about whether the verse really does express a form of that doctrine, or whether the intended meaning was something else entirely.