The Shastras, Agamas, and Tantras explain that Sri Radha and Sri Rukmini are not distinct goddesses. These sacred texts say they are the same Supreme Goddess, appearing in different places to take part in the divine pastimes of the Supreme Lord.
The Absolute Oneness of Goddess Radha and Goddess Rukmini -
"She is Rukmini at Dvaravati; and in the Vrndavana-grove she is Radha" -Padma Purana (V.77.34b-40a)
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“Rukmiṇī in Dvārāvatī and Rādhā in Vṛndāvana” -Padma Purana, 1.17.196
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"Rukmini in Dvaravati, Radha in Vrndavana forest, Devaki in Mathura, Paramesvari in Patala (nether world), Sita in Citrakuta..." -Skanda Purana (Book V, Avantya Khanda, S03 Reva Khanda)
The Brahma Vaivarta Purana recounts a direct conversation in which Lord Krishna reveals this truth to Goddess Radha. He says, “Radhe! Just as you are Radhikadevi in Goloka, so too you are in Gokula.” He further assures her, “In Dvaraka, you reside in the form of the virtuous Rukmini, manifested from a portion of Mahalakshmi.” This statement decisively resolves the theological debate, affirming that Radha herself is Rukmini.
Who is Goddess Radha?
It’s said that Rukmini is an incarnation of Goddess Lakshmi, and there’s also an explanation of Radha’s deep theological link to Lakshmi and the Supreme Lord. The Shastras describe Radha as the Supreme Mula Prakriti, with Maha Lakshmi either being the same as her, emerging from her left side, or representing one of the two halves of the Supreme Mula Prakriti.
In the Narada Pancaratra (Second Night, Chapter 3), it’s described that Lakshmi manifests directly from Radha, with Maha Lakshmi emerging from Radha’s left side as the Presiding Deity of wealth and prosperity. The text also explains that Radha herself springs from Sri Krishna’s left side and resides in His heart, later taking the name of Maha Lakshmi and dwelling in Vaikuntha upon the chest of Narayana.
“Some time later the Mūla Prakṛti, the Beloved of Kṛṣṇa divided into two parts. Out of Her left portion came Kamalā and out of Her right portion came Rādhikā.” -Devi Bhagavata Purana (Book 9)
In the Devi Bhagavata Purana (Book 9), their forms and consorts are described in more detail: “She who appeared from the right side is called Radha, and she who emerged from the left side is Maha Lakshmi.” Radha first desired the two-armed Sri Krishna, and afterward, Maha Lakshmi desired Him. The two-armed one then gave Maha Lakshmi the four-armed form, and finally, the two-armed one Himself took Radha.
The Brahmayamala records Lord Shiva stating the exact oneness of Radha and Lakshmi to Goddess Parvati:
"Radha, the queen of Vrndavana, has a fair body like molten gold. As is Radha, so is Laksmi, there is no doubt about this"
The Devi Bhagavata Purana (Book 9, Chapter 1) portrays Radha as the supreme Fifth Sakti:
“O Child Narada! Now I will tell you about the Fifth Sakti, Devi Radhika. Listen. She is the Presiding Deity of the five Pranas; She is the very Life of all, dearer than life itself to Sri Krishna, and more beautiful and exalted than all other Prakrti Devis.” It goes on to say, “She is the wife, the left half, as it were, of Sri Krishna, and in no way inferior to Him in quality, Tejas (Fiery Spirit), or any other aspect.” It concludes, “Every female in every universe originates from a part of Sri Radha, or from a part of a part.”
The Brahma Vaivarta Purana describes the name Radha as having deep etymological and philosophical meaning:
“‘Ra’ is the giver of ‘dha,’ which stands for moksha, so she who bestows moksha is called Radha.”
The Brihannaradiya Purana affirms her highest theological status:
“Radha is Krishna’s beloved, the controller of the Rasa. Free from material qualities, worshipped by Krishna, she is the root nature and the supreme controller. O Goddess, you are the mother of the universes, the eternal Vishnumaya.”
The Incarnation of Goddess Lakshmi as Rukmini
The shastra clearly confirms Rukmini's identity as the direct incarnation of Goddess Lakshmi on earth.
"His daughter... was Rukmini, of an excellent complexion. She was born with a portion of Laksmi and had all auspicious marks. She was Sita in (the lord's) existence as Rama, and was Rukmini in his birth as Krsna" -Padma Purana (Uttara-Khanda)
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"When at Madhura Visnu will descend in four forms (Balarama, Krsna, Pradyumna, Aniruddha), I too shall manifest myself in four forms called Revati, Rukmini, Rati and Usa" -Lakshmi Tantra (Chapter 8)
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"Great was the jubilation, O king, among the citizens in Dvaraka at the sight of Sri Krsna, the Spouse of Sri (the goddess of beauty and prosperity), united (in wedlock) with Rukmini, who was no other than (the said) Goddess Laksmi" -Srimad Bhagavatam (Book 10, Discourse 55)
In conclusion, the shastras do not support the notion that Radha and Rukmini are distinct goddesses. They affirm that Radha is the Supreme Mula Prakriti and the source or identical counterpart of Maha Lakshmi. Therefore, Rukmini is seen as the manifestation of the same Goddess Lakshmi/Radha residing in Dvaraka.