Muwatta Malik, Book 14, Hadith 9 (USC-MSA) ⓘ

Yahya related to me from Malik from Zayd ibn Rabah and Ubaydullah ibn Abi Abdullah Salman al-Agharr from Abu Hurayra that the Messenger of Allah, may Allah bless him and grant him peace, said, "A prayer in this mosque of mine is better than a thousand prayers in any other mosque, except the Masjid al-Haram (in Makka)."

حَدَّثَنِي يَحْيَى، عَنْ مَالِكٍ، عَنْ زَيْدِ بْنِ رَبَاحٍ، وَعُبَيْدِ اللَّهِ بْنِ أَبِي عَبْدِ اللَّهِ، عَنْ أَبِي عَبْدِ اللَّهِ، سَلْمَانَ الأَغَرِّ عَنْ أَبِي هُرَيْرَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ ‏ "‏ صَلاَةٌ فِي مَسْجِدِي هَذَا خَيْرٌ مِنْ أَلْفِ صَلاَةٍ فِيمَا سِوَاهُ إِلاَّ الْمَسْجِدَ الْحَرَامَ ‏" ‏ ‏.‏