Skandapurana 5.207.25

5.207.25

tataḥ prokto mayā rāmaḥ spṛśemāṃ vatsa pāṇinā ..
mānuṣatvaṃ labhedyena gautamasya priyā muneḥ ..
śāpadoṣeṇa saṃjātā śileyaṃ tasya sanmuneḥ .. 25 ..

Then Rāma was told by me: "Touch this [rock] with your hand, my child, / so that the beloved wife of the sage Gautama may regain her human form. / Through the fault of the curse of that noble sage, she became this rock." // 25