Vaishnava Samhita. Narasimha Mehta Charitam II. Vol III Book VI Chp 16 Shlokas 17 - 18

ते च द्वारवतीं विचिक्युः कार्यदर्शिनम् |
अप्राप्य तं विषण्णास्ते तस्थुर्जल निधेस्तटे ||
एवं संप्रेष्य तान् भक्तान् चिन्ताकुलितमानसः |
नृसिह्ममेधा गोविन्दं सस्माराश्रितवत्सलम् ||

The sadhus arrived at Dwaraka. But they could not find Mehta's secretary there. Much worried they were sitting in the beach. After bidding farewell to those bhaktas Narasimha Mehta was sitting contemplating Lord Govinda. He was greatly perturbed.