Vaishnava Samhita. Shri Surdas Charitam. Vol III Book VII Chp 5 Shloka 23

श्रीसद्गुरुरुवाच

एवमुक्तो महाभागः सूरदासो महामतिः |

उवाच धैर्यमापन्नो जानंस्तौ दिव्यदम्पती ||

Shri Sadguru said

Hearing this, the great bhakta, the clever Surdas understood that They were the Divine Coupld, and hence he said bldly as follows