Abu Hurairah reported,

The Messenger of Allah ﷺ gave a parable of the miser and the charitable giver, comparing them to two men wearing iron coats of mail, with their hands forced up to their breasts and collarbones. Whenever the charitable giver gave in charity, his coat would expand and stretch out from him until it covered his fingertips and erased his footprints. But whenever the miser intended to give charity, his coat would contract, and every ring would tighten in its place.The narrator said, I saw the Messenger of Allah ﷺ gesturing with his finger at his collar. If only you had seen him trying to widen it, but it would not widen.

Muslim 2360

Sahih

حدثني سليمان بن عبيد الله أبو أيوب الغيلاني حدثنا أبو عامر يعني العقدي حدثنا إبراهيم بن نافع عن الحسن بن مسلم عن طاوس

عن أبي هريرة قال

ضرب رسول الله ﷺ مثل البخيل والمتصدق كمثل رجلين عليهما جنتان من حديد قد اضطرت أيديهما إلى ثديهما وتراقيهما فجعل المتصدق كلما تصدق بصدقة انبسطت عنه حتى تغشي أنامله وتعفو أثره وجعل البخيل كلما هم بصدقة قلصت وأخذت كل حلقة مكانها قال فأنا رأيت رسول الله ﷺ يقول بإصبعه في جيبه فلو رأيته يوسعها ولا توسع

مسلم 2360صحيح
Contents
Reference
Commentary
Ayat
Collection
Sahih Muslim
Book
Zakat
Chapter
Parable of the spender and the miser
Numbering
Darussalam 2360
Muslim 2360