Mishkat al-Masabih 10 The Rites of Pilgrimage كتاب المناسك 243

وَعَنْ أَنَسٍ عَنِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ: «اللَّهُمَّ اجْعَلْ بِالْمَدِينَةِ ضِعفَي مَا جعلت بِمَكَّة من الْبركَة»

Anas reported the Prophet as saying, “O God, put in Medina twice as much blessing as Thou hast put in Mecca.” Bukhari and Muslim.