Sahih al-Bukhari 6602
صحيح البخاري#6602Sahihحَدَّثَنَا مَالِكُ بْنُ إِسْمَاعِيلَ، حَدَّثَنَا إِسْرَائِيلُ، عَنْ عَاصِمٍ، عَنْ أَبِي عُثْمَانَ، عَنْ أُسَامَةَ، قَالَ كُنْتُ عِنْدَ النَّبِيِّ صلى الله عليه وسلم إِذْ جَاءَهُ رَسُولُ إِحْدَى بَنَاتِهِ وَعِنْدَهُ سَعْدٌ وَأُبَىُّ بْنُ كَعْبٍ وَمُعَاذٌ أَنَّ ابْنَهَا يَجُودُ بِنَفْسِهِ. فَبَعَثَ إِلَيْهَا " لِلَّهِ مَا أَخَذَ، وَلِلَّهِ مَا أَعْطَى، كُلٌّ بِأَجَلٍ، فَلْتَصْبِرْ وَلْتَحْتَسِبْ ".
Narrated Usama:Once while I was with the Prophet (ﷺ) and Sa`d, Ubai bin Ka`b and Mu`adh were also sitting with him, there came to him a messenger from one of his daughters, telling him that her child was on the verge of death. The Prophet (ﷺ) told the messenger to tell her, "It is for Allah what He takes, and it is for Allah what He gives, and everything has its fixed time (limit). So (she should) be patient and look for Allah's reward
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 al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 82:8