Radha Bhajati Tam Krishnam - Brahma Vaivarta Purana, Section 1 [Prakriti Khand], Chapter 48, Verse 38 (1.48.38)

Radha Bhajati Tam Krishnam - Brahma Vaivarta Purana, Section 1 [Prakriti Khand], Chapter 48, Verse 38 (1.48.38)

Radha Bhajati Tam Krishnam Sa Cha Tam Cha Parasparam.
Ubhayo Sarvsaamyam Cha Sada Santo Vadanti Cha.

- Brahma Vaivarta Purana, Section 1 [Prakriti Khand], Chapter 48, Verse 38 (1.48.38)

Sri Radha worships Shri Krishna, and Shri Krishna worships Shri Radha — both of them worship each other. Saints always declare that there is no difference between them at all.