Abdullah bin Masud reported,

The Messenger of Allah ﷺ gave him the kunyah Abu Abdul-Rahman, even though he had no children.

Azami 14537

Sahih

عن ابن مسعود

أن رسول الله ﷺ كناه أبا عبد الرحمن ولم يولد له.

الأعظمي 14537صحيح
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Superior moral conduct
Chapter
Names, kunyas, and titles
Section
Calling someone Abu or Umm without having children
Numbering
Jami al-Kamil 14537 (2nd edition)
Azami 14537