Sahih Bukhari
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Volume: 003 / Book Number: 034 / Hadith Number: 339
Narrated 'Abdullah bin Zaid:
The Prophet said, "The Prophet Abraham made Mecca a sanctuary, and asked for Allah's blessing in it. I made Medina a sanctuary as Abraham made Mecca a sanctuary and I asked for Allah's Blessing in its measures the Mudd and the Sa as Abraham did for Mecca.