Uqba bin Amir reported,

The Prophet ﷺ said to a man, "Would you be pleased if I married you to so-and-so?"He replied, "Yes."Then he said to the woman, "Would you be pleased if I married you to so-and-so?"She replied, "Yes."So he married them to each other. The man consummated the marriage with her without specifying a dowry and without giving her anything. He was among those who witnessed Hudaybiyah, and he had a share at Khaybar.When death approached him, he said, "The Messenger of Allah ﷺ married me to so-and-so, and I did not specify a dowry for her, nor did I give her anything. I now call you to witness that I have given her, as her dowry, my share at Khaybar."She took the share and sold it for one hundred thousand.

Azami 6514

Sahih

عن عقبة بن عامر

أن النبي ﷺ قال لرجل: أترضى أن أزوجك فلانة؟ قال: نعم، وقال للمرأة: أترضين أن أزوجك فلانا قالت: نعم، فزوج أحدهما صاحبه، فدخل بها الرجل، ولم يفرض لها صداقا. ولم يعطها شيئا. وكان ممن شهد الحديبية له سهم خيبر. فلما حضرته الوفاة قال: إن رسول الله ﷺ زوجني فلانة، ولم أفرض لها صداقا، ولم أعطها شيئا. وإني أشهدكم أني أعطيتها من صداقها سهمي بخيبر، فأخذت سهما فباعته بمائة ألف.

الأعظمي 6514صحيح
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Marriage
Chapter
Bridal gift
Section
Marriage can be contracted without a mahr
Numbering
Jami al-Kamil 6514 (2nd edition)
Azami 6514