From Sahih Muslim (Hadith 3313):
Abdullah b. Zaid b. 'Asim (Allah be pleased with him) reported Allah's Messenger (ﷺ) as saying:Verily Ibrahim declared Mecca sacred and supplicated (for blessings to be showered) upon its inhabitants, and I declare Medina to be sacred as lbrahim had declared Mecca to be sacred. I have supplicated (Allah for His blessings to be showered) in its sa' and its mudd (two standards of weight and measurement) twice as did Ibrahim for the inhabitants of Mecca
Reference: Muslim 3313