It Is Disliked To Delay Making A Will Sunan an-Nasa'i 3618
Arabic hadith text
أَخْبَرَنَا يُونُسُ بْنُ عَبْدِ الأَعْلَى، قَالَ أَنْبَأَنَا ابْنُ وَهْبٍ، قَالَ أَخْبَرَنِي يُونُسُ، عَنِ ابْنِ شِهَابٍ، قَالَ فَإِنَّ سَالِمًا أَخْبَرَنِي عَنْ عَبْدِ اللَّهِ بْنِ عُمَرَ، أَنَّ النَّبِيَّ صلى الله عليه وسلم قَالَ " مَا حَقُّ امْرِئٍ مُسْلِمٍ تَمُرُّ عَلَيْهِ ثَلاَثُ لَيَالٍ إِلاَّ وَعِنْدَهُ وَصِيَّتُهُ ". قَالَ عَبْدُ اللَّهِ بْنُ عُمَرَ مَا مَرَّتْ عَلَىَّ مُنْذُ سَمِعْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ ذَلِكَ إِلاَّ وَعِنْدِي وَصِيَّتِي
Translation
It was narrated from 'Abdullah bin 'Umar that the Prophet said
"It is not befitting for a Muslim to abide for three nights without having his will with him." 'Abdullah bin 'Umar said: "Since I heard this from the Messenger of Allah, I have always had my will with me."