Musnad Ahmad 11187

Translation

✧ I heard your father say about the mosque that was established on piety. He said, "My father said: I entered upon the Messenger of Allah ﷺ in the house of one of his wives, so I said, 'O Messenger of Allah, which of the two mosques was established on piety?' So he took a handful of gravel and struck the ground with it, saying, 'This is the Mosque of Madinah.' I said to him, 'I bear witness that I heard your father mention it like this.'"

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