Valmiki Ramayana Bala Kanda Sarga 29 Shloka 19
Original Shlokaअथ विष्णुर्महातेजा अदित्यां समजायत। वामनं रूपमास्थाय वैरोचनिमुपागमत्।।1.29.19।।
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अथ then, महातेजा: highly resplendent one, विष्णु: Vishnu, अदित्याम् from the womb of Aditi, समजायत was born, वामनं रुपम् form of Vamana, आस्थाय assuming, वैरोचनिम् emperor Bali,the son of Virochana, उपागमत् approached.
Then the resplendent Visnu, born from the womb of Aditi and assuming the form of Vamana, approached, the son of Virochana (Bali).