Hadith #2571 (Jami' al-Tirmidhi)
Book: Chapters on the description of Paradise
Narrator(s): al-Rabi' bin Khathaym الربيع بن خثيم الثوري, ibn Mas'ud, Muhammad bin Bashar Bindar محمد بن بشار بندار, Sa'id bin Masrooq Ath-Thawri سعيد بن مسروق الثوري, Sufyan bin Sa‘id Ath-Thawri سفيان الثوري, Yahya bin Sa'id bin Farroukh al-Qatan يحيى بن سعيد بن فروخ القطان

“Whoever asks Allah (s.w.t) Paradise three times, Paradise says: ‘O Allah, admit him into Paradise’, and whoever seeks refuge from the Fire three times, the Fire says: ‘O Allah, save him from the Fire.'”  Other chains report similar narrations.

Source: https://parallelquran.com/hadith/jami-al-tirmidhi-2571/