حَدَّثَنَا مُحَمَّدُ بْنُ مَعْمَرٍ، حَدَّثَنَا رَوْحُ بْنُ عَوْفٍ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " مَا حَقُّ امْرِئٍ مُسْلِمٍ يَبِيتُ لَيْلَتَيْنِ وَلَهُ شَىْءٌ يُوصِي بِهِ إِلاَّ وَوَصِيَّتُهُ مَكْتُوبَةٌ عِنْدَهُ " .
It was narrated from Ibn 'Umar that the Prophet (PBUH) said: “The Muslim man has no right to spend two nights, if he has something for which will should be made, without having a written will with him.” Translation Not Available
Book Ref: Sunan Ibn Majah Book 22 Hadith 2702
Web Ref: Sunan Ibn Majah Vol 3 Book 22 Hadith 2702