Arabic (Original)
حَدَّثَنَا وَكِيعٌ حَدَّثَنَا هِشَامٌ عَنْ أَبِيهِ عَنْ سَعْدٍ أَنَّ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ دَخَلَ عَلَيْهِ يَعُودُهُ وَهُوَ مَرِيضٌ فَقَالَ يَا رَسُولَ اللَّهِ أَلَا أُوصِي بِمَالِي كُلِّهِ قَالَ لَا قَالَ فَبِالشَّطْرِ قَالَ لَا قَالَ فَبِالثُّلُثِ قَالَ الثُّلُثُ وَالثُّلُثُ كَثِيرٌ أَوْ كَبِيرٌ.
English Translation
Sa'd reported that the Prophet (peace be upon him) visited him while he was ill and asked: 'O Messenger of Allah, shall I bequeath all my wealth?' He said: 'No.' He asked: 'Then half?' He said: 'No.' He asked: 'Then one-third?' He said: 'One-third, and one-third is much (or substantial).'