This mantra is from Ṛgveda 10.97.22(a-b).
(1)
ओष॑धयस्संव॑दन्ते॒
óṣadhayassáṃvadante
óṣadh-ayaḥ sáṃ-vad-ante
herb-NOM:PL with-sing-3PL.PRS.IND.MEDP
‘The healing herbs sing together’
(2)
सोमे॑न स॒ह राज्ञा᳚
sómena sahá rā́jñā
sóm-ena sahá rā́jñā
soma-INST.SG COM king-INST.SG
‘with the king Soma.’