The Messenger of Allah ﷺ said, "Allah, place in Medina twice the blessing that is in Mecca."
حدثنا وهب بن جرير حدثنا أبي قال سمعت يونس عن الزهري
قال رسول الله ﷺ اللهم اجعل بالمدينة ضعفي ما بمكة من البركة
Its chain of transmission is sahih. Yunus is Ibn Yazid Ayli, and the hadith was narrated by Bukhari, 3/29, in Umrah, and Muslim, 2/994, no. 1369, in Hajj, on the merit of Madinah.