Anas bin Malik reported,

He walked to the Prophet ﷺ carrying barley bread and rancid fat. He said that the Messenger of Allah ﷺ had pawned a coat of armor of his with a Jew in Madinah, from whom he had taken some barley for his family.He said, "I heard him one day say, 'Not a single saa of grain nor a saa of wheat remains with the family of Muhammad by evening,' even though he had nine wives at that time."

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عن أنس

أنه مشى إلى النبي ﷺ بخبز شعير وإهالة سنخة قال وقد رهن رسول الله ﷺ درعا له عند يهودي بالمدينة فأخذ منه شعيرا لأهله قال ولقد سمعته ذات يوم يقول ما أمسى عند آل محمد صاع حب ولا صاع بر وإن عنده تسع نسوة يومئذ