Jami` at-Tirmidhi 2118
جامع الترمذي#2118Sahihحَدَّثَنَا ابْنُ أَبِي عُمَرَ، حَدَّثَنَا سُفْيَانُ، عَنْ أَيُّوبَ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، قَالَ قَالَ النَّبِيُّ صلى الله عليه وسلم " مَا حَقُّ امْرِئٍ مُسْلِمٍ يَبِيتُ لَيْلَتَيْنِ وَلَهُ مَا يُوصِي فِيهِ إِلاَّ وَوَصِيَّتُهُ مَكْتُوبَةٌ عِنْدَهُ " . قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ . وَقَدْ رُوِيَ عَنِ الزُّهْرِيِّ عَنْ سَالِمٍ عَنِ ابْنِ عُمَرَ عَنِ النَّبِيِّ صلى الله عليه وسلم نَحْوُهُ .
Ibn 'Umar narrated that the Messenger of Allah (S.A.W) said:"It is not right for a Muslim man to spend two nights, having what he would will, without having his will written with him
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
In-book reference: 30:3