Abdullah bin Umar reported,

The Messenger of Allah ﷺ said, "It is not right for a Muslim who has something he wishes to bequeath to let two nights pass without having his will written and kept with him."The two narrators said, "who has something to bequeath," and they did not say, "who wishes to bequeath."

Muslim 4205

Sahih

و حدثنا أبو بكر بن أبي شيبة حدثنا عبدة بن سليمان وعبد الله بن نمير ح و حدثنا ابن نمير حدثني أبي كلاهما عن عبيد الله بهذا الإسناد غير أنهما قالا وله شيء يوصي فيه ولم يقولا يريد أن يوصي فيه

مسلم 4205صحيح
Contents
Reference
Commentary
Ayat
Collection
Sahih Muslim
Book
Bequests
Chapter
A man's bequest written with him
Numbering
Darussalam 4205
Muslim 4205