Valmiki Ramayana Sundara Kanda Sarga 13 Shloka 48

कपिकुञ्जरः the elephant among monkeys, एवम् that way, बहुविधम् in many ways, दुःखम् grief, मुहुः over and over, मनसा in mind, धारयन् by holding, तदा then, शोकस्य sorrow, पारम् long, नाध्यगच्छात् did not reach of the end.

The elephant among monkeys (Hanuman) worrying over and over again, holding his head for long could not reach the end of his grief.