Hadith 1186

Narrated Abu Sa'id al-Khudri (RA): The Prophet (ﷺ) said: "No (religious) journey is to be undertaken except to (pray in) the three mosques: The Sacred Mosque (Makkah), the Aqsa Mosque (Jerusalem), and this Mosque of mine (al-Madinah)." [Agreed upon, and the wording is al-Bukhari's].