Hathyoga is a foundational practice within the yogic tradition, focusing on physical postures (asanas), breathing techniques (pranayama), and purification methods.
According to classical yogic texts and traditions, the lineage of Hathyoga is often traced back to Lord Shiva, who is regarded as the first yogi and the originator of yoga. He is frequently referred to by names such as Aadinath, meaning the first lord or original lord.
Lord Shiva is traditionally believed to have imparted the knowledge of Hathyoga to Goddess Parvati. Therefore, Aadinath is widely considered the primordial source and the first preacher of Hathyoga.
Among the given options, Aadinath represents this original source.