https://www.wisdomlib.org/definition/nalakaNalaka: the world at once and become an ascetic and hold himself in readiness to profit by the Buddhas Enlightenment.
This Nalaka did, though possessing eighty thousand crores of wealth, and he spent his time in Himava. When the time came, he visited the Buddha seven days after the Buddhas first sermon and questioned him on the Moneyyapatipada (also called the Nalakapatipada, because it is included in the Nalaka Sutta). Nalaka retired once more into Himava and there attained arahantship. There he spent seven months leaning against a golden rock, practising patipada in its highest form. After his death the Buddha, with his monks, visited the scene of his death, cremated his remains, and had a cetiya built over them.
It appears Nalaka became a monk in the name of future Gotama Buddha at the request of his uncle Asita Tapasa.
Is this true?