(1) باب الْكَرَاهِيَةِ فِي تَأْخِيرِ الْوَصِيَّةِ
It was narrated from Ibn 'Umar that the Messenger of Allah said:
"It is not befitting for a Muslim who has anything concerning which a will should be made, to abide for two nights without having a written will with him." (ID)
Reference (ID): Sunan an-Nasa'i 3616 (ID)
In-book reference (ID): Book 30, Hadith 6 (ID)
English translation (ID): Vol. 4, Book 30, Hadith 3646 (ID)