Āruṇi (Aruni) is one of the Sādhya (Sadhya) devata (gods). He is one of the sons born of Sādhyā(Sadhya), sired by Dharma. The sons of Sādhyā(Sadhya) are known as the Sādhya gods.

Matsyapurāṇa(171.43)