Sahih Muslim 4212
صحيح مسلم#4212Sahihوَحَدَّثَنِي زُهَيْرُ بْنُ حَرْبٍ، حَدَّثَنَا الْحَسَنُ بْنُ مُوسَى، حَدَّثَنَا زُهَيْرٌ، حَدَّثَنَا سِمَاكُ، بْنُ حَرْبٍ حَدَّثَنِي مُصْعَبُ بْنُ سَعْدٍ، عَنْ أَبِيهِ، قَالَ مَرِضْتُ فَأَرْسَلْتُ إِلَى النَّبِيِّ صلى الله عليه وسلم فَقُلْتُ دَعْنِي أَقْسِمْ مَالِي حَيْثُ شِئْتُ فَأَبَى . قُلْتُ فَالنِّصْفُ فَأَبَى . قُلْتُ فَالثُّلُثُ قَالَ فَسَكَتَ بَعْدَ الثُّلُثِ . قَالَ فَكَانَ بَعْدُ الثُّلُثُ جَائِزًا .
Mus'ab b. Sa'd reported on the authority of his father. I was ailing. I sent message to Allah's Apostle (ﷺ) saying:Permit me to give away my property as I like. He refused. I (again) said: (Permit me) to give away half. He (again refused). I (again said): Then one-third. He (the Holy Prophet) observed silence after (I had asked permission to give away) one-third. He (the narrater) said: It was then that endowment of one-third became permissible
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:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 25:9