The Prophet ﷺ said, "A prayer in this mosque of mine is better than a thousand prayers in any other mosque, except the Sacred Mosque."
حدثنا يحيى عن موسى الجهني سمعت نافعا سمعت
عن النبي ﷺ قال صلاة في مسجدي أفضل من ألف صلاة فيما سواه إلا المسجد الحرام
Its isnad is sahih. Musa Juhani is Musa bin Abdullah, also said to be Ibn Abdul-Rahman. His reliability was established earlier at 1496, with a reference to him also at 3712, and we add here that he was deemed reliable by Yahya Qattan, Ahmad, Ibn Main, and others. Bukhari gave his biography in al-Kabir 4/1/288. The hadith is a repetition of 5153.