Although the Aśvinī-kumāras were only physicians and were therefore excluded from drinking soma-rasa in sacrifices, the demigods agreed to allow them henceforward to drink it.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
अन्वजानंस्ततः सर्वे ग्रहं सोमस्य चाश्विनोः । भिषजाविति यत्पूर्वं सोमाहुत्या बहिष्कृतौ
anvajānaṃstataḥ sarve grahaṃ somasya cāśvinoḥ | bhiṣajāviti yatpūrvaṃ somāhutyā bahiṣkṛtau
SB 9.3.26