Hanuman Chalisa, Chaupai 34
"ant kāl raghubar pur jāī" is Chaupai 34 of the Hanuman Chalisa, which Tulsidas wrote in Awadhi. It means: At the end that person goes to Rama's abode, and wherever they are born again they are known as a devotee of Hari.
अंत काल रघुबर पुर जाई ।जहाँ जन्म हरि-भक्त कहाई ॥ant kāl raghubar pur jāījahāṁ janma hari-bhakt kahāī
At the end that person goes to Rama's abode, and wherever they are born again they are known as a devotee of Hari.
Tulsidas, Hanuman Chalisa, Chaupai 34, Gita Press reading
This line praises Hanuman or speaks to the reader. It does not retell one episode, so there is no single place in the Ramayana to point to.
Krishna says that whoever leaves the body remembering him at the end comes to him. Read Bhagavad Gita 8.5
Awadhi text: Goswami Tulsidas, Gita Press reading, checked against three Gita Press printings and Rambhadracharya's Mahaviri. English meaning and word glosses: Wisdom's own, following the traditional reading, edited by Ankur Shukla.