She came to the Prophet ﷺ and said, "Prophet of Allah, I have nothing of my own except what Zubayr brings into the house. Is there any blame on me if I give a little in charity from what he brings?"He replied, "Give whatever you can, and do not hold it back, lest Allah hold back from you."
أخبرنا الحسن بن محمد عن حجاج قال قال ابن جريج أخبرني ابن أبي مليكة عن عباد بن عبد الله بن الزبير
أنها جاءت النبي ﷺ فقالت يا نبي الله ليس لي شيء إلا ما أدخل علي الزبير فهل علي جناح في أن أرضخ مما يدخل علي فقال ارضخي ما استطعت ولا توكي فيوكي الله عز وجل عليك
Bukhari, Zakat, chapter titled "Charity within one's means," hadith 1434, and Muslim, Zakat, chapter titled "Encouragement to give and disapproval of hoarding," hadith 89/1029, from the hadith of Hajjaj bin Muhammad, through him. It is also in Kubra, hadith 2332.