Ramakrishna Charitam. Vol III Book VII Chp 18 Shloka 21
श्रीसद्गुरुरुवाच
एवं स्तुता प्रसन्ना सा गायत्री भक्तवत्सला |
उवाच मधुरं वाक्यं रामकृष्णं तपोनिधिम् ||
Shri Sadguru continued
Devi Gayatri, who was meditated upon thus by Shri Ramakrishna, the great repository of tapas, addressed him as follows: