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The Mahapurana, Uttara Purana:
"The dwelling in this body is due to the karma of lifespan. Although I reside in this body, my lifespan, like water, is quickly diminishing in these finite hours. Therefore, until my lifespan is exhausted, I will strive with enthusiasm in the Jain path, which leads to heaven and liberation." (6-10)
Thus, breaking the chains of desire, he became indifferent to the riches of the kingdom. Even though he was independent, he was subdued by the riches of initiation, meaning he took Jain initiation along with many other kings. (11)
He practiced austerities for a long time, had a clear understanding of the eleven angas, his soul shone with the light of merit, and he was constantly engaged in contemplation of the sixteen bhavanas, including darshan-vishuddhi. This pure-minded Vimalavahan attained the name of Tirthankara. (12)
Vimalavahan, who conquered his senses, at the end of his lifespan, with his mind fixed on the five supreme beings, attained samadhi-death and became the holder of the lifespan of thirty-three oceans, reaching the victorious, unparalleled aircraft called Vijay. (13)
There, he was born with both material and spiritual white leshya, with a body that was square in shape, one hand high, and beautiful in form, taste, smell, and touch. He took his first breath after sixteen months and fifteen days, and consumed mental food after thirty thousand years. He had knowledge of his own lifespan and encompassed the entire network of the universe, meaning he could see all the elements of the universe with his knowledge of his lifespan. He had the power to uproot the network of the universe and place it elsewhere. He could also perform actions with his body in that same area. He enjoyed the infinite pleasures of non-perception, which were many times greater than the pleasures of perception, which he experienced through the five senses. (14-17)
Six months before this great being was to descend from heaven to earth, due to the influence of the merit of the Tirthankara name, Kubera, by the command of Indra, rained down three and a half crore rannus on the house of King Jitashatru, the ruler of the Bharata Kshetra in Jambudvipa, a descendant of Ikshvaku and belonging to the Kashyapa gotra. (18-20)
Then, on the new moon day of the month of Jyeshta, when the moon was only a fraction of a kala away from the Rohini constellation,