The Sri Vaishnava sect has two sub-sects, Thenkalai and Vadakalai. Vadakalais follow the teachings of Vedanta Desikan, whereas Thenkalais follow the teachings of Pillai Lokacharya. My question is about Pillai Lokacharya. In his Prapanna Paritrana, Pillai Lokacharya discusses the importance of Sharanagati or complete surrender to Vishnu, because he is the only adequate protector in the Universe. Pillai Lokacharya explains why Devas are not adequate protectors:
But what about Indra, Brahma and Rudra? an objector may ask. The answer is: it is too true that Indra is the ruler of the three regions, and yet it is too well-known how he is in constant fear of losing this high estate. He is often curse-stricken, pays the penalty, by suffering for Brahmicide, is bound as a captive by Indrajit and allows his sway to get into the hands of such beings as Mahabali. Such then is Indra, weeping and crawling in the dust.
Brahma is no better, for he is assailed by such evil genii as Madhu and Kaitabha, and is deprived of his Vedas which to him are his "eyes and treasure". And his head he allows to be ripped by Rudra.
Nor again is Rudra any better. For he is to begin with the Destroyer par excellence. Water is wished for by the thirsty, but Rudra of the fire-colour offers himself to such thirsty (worshippers of his) as fire! He exacts horrid offerings from his devotees, by saying: "Kill for me, roast for me." Banasura was his votary - so much so that Rudra pledged himself to guard him so that even "the flower he wore on his head should not fade." But when Krishna was hacking Bana's arms as if they were so many cactus-stems, the boasted guardian Rudra shut his eyes and slipped away from his ward, uttering: "If life is spared, I can live by selling salt." Again he, a sinner, cut the throat of Brahma, the guide of the worlds, his own father; and wandered about after such acts of treason in his own house, with the skull of his victim fast clinging to his hand, from door to door, in search of a saviour.
Most of these incidents are recognizable; there's Indra killing Vritrasura, Indra being captured by Indrajit, Indra losing his kingdom to Mahabali, Brahma getting the Vedas stolen by Madhu and Kaitabha, Shiva carrying Brahma's head as Kala Bhairava, and Krishna and Shiva fighting in the story of Banasura. But I'm interested in the part in bold. My question is, what scriptures describe Shiva discussing living by selling salt while Krishna was cutting off Banasura's thousand arms?
Are these words mentioned in either the Bhagavatam or the Harivamsa? And what do they mean, anyway? Why salt of all things?