"O Messenger of Allah, shall I bequeath all of my wealth?" He said: "No." He said: "Half?" He said: "No." He said: "One-third?" He said: "One-third, and one-third is much or large." (Using translation from Nasāʾī 3632)
أَنَّ النَّبِيَّ ﷺ دَخَلَ عَلَيْهِ يَعُودُهُ وَهُوَ مَرِيضٌ فَقَالَ يَا رَسُولَ اللهِ أَلا أُوصِي بِمَالِي كُلِّهِ؟ قَالَ لَا قَالَ فَبِالشَّطْرِ؟ قَالَ لَا قَالَ فَبِالثُّلُثِ؟ قَالَ الثُّلُثُ وَالثُّلُثُ كَبِيرٌ أَوْ كَثِيرٌ