Dawa Sangpo) of the northeastern Indian Kingdom of Shambhala was the one who requested teaching from the Buddha that would allow him to practice the dharma without renouncing his worldly enjoyments and responsibilities.
From the website www.kalachakra.org (by Kalachakra scholar Edward Smith): ″The following is taken from "dpal dus kyi 'khor lo'i chos bskor gyi byung khungs nyer mkho", by Tāranātha:[citation needed] On the full moon of the month Caitra in the year following his enlightenment, at the great stupa of Dhānyakaṭaka (dpal ldan 'bras dpung kyi mchod rten), the Buddha emanated the mandala of "The Glorious Lunar Mansions".
In front of an audience of countless Buddhas, Bodhisattvas, vīras, ḍākinīs, the twelve great gods, gods, nāgas, yakṣas, spirits and fortunate people gathered from the 960 million villages north of the river Śītā, was requested by the emanation of Vajrapani, the king Sucandra (zla ba bzang po), to teach the tantra.
Some teachings were taken to other human realms, and the Dharma king Sucandra wrote the Tantras in textual form in his land of Sambhala.
In the second year after the teaching of the Mūlatantra, having installed as regent his son, the emanation of Kṣitigarbha, Sureshvara (lha'i dbang po), he passed on.