Sahih Muslim 1369
Sahih Muslim · Book 15: The Book of Pilgrimage · The virtue of Al-Madinah and the Prophet's Prayer for it to be blessed. Its sanctity and the sanctity of its game and trees. The Boundaries of its sanctuary
Anas b. Malik (Allah he pleased with him) reported that Allah's Messenger (ﷺ) said:
وَحَدَّثَنِي زُهَيْرُ بْنُ حَرْبٍ ، وَإِبْرَاهِيمُ بْنُ مُحَمَّدٍ السَّامِيُّ ، قَالاَ حَدَّثَنَا وَهْبُ بْنُ جَرِيرٍ ، حَدَّثَنَا أَبِي قَالَ، سَمِعْتُ يُونُسَ ، يُحَدِّثُ عَنِ الزُّهْرِيِّ ، عَنْ أَنَسِ بْنِ مَالِكٍ ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " اللَّهُمَّ اجْعَلْ بِالْمَدِينَةِ ضِعْفَىْ مَا بِمَكَّةَ مِنَ الْبَرَكَةِ " .
O Allah, increase in Medina twice the blessings (Thou showered) on Mecca.