Sahih Ibn Hibban 3640

Translation

✧ The Messenger of Allah ﷺ was told about my fasting, so he entered upon me, and I threw a leather cushion stuffed with palm fiber for him, but he sat on the ground, and the cushion remained between me and him. Then he said, "Is it not enough for you to fast three days from every month?" I said, "O Messenger of Allah." He said, "Five." I said, "O Messenger of Allah." He said, "Seven." I said, "O Messenger of Allah." He said, "Nine." I said, "O Messenger of Allah." He said, "Eleven." I said, "O Messenger of Allah." He said, "There is no fast above the fast of Dāwūd: half of a lifetime - fasting one day and breaking the fast one day."

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