Sahih al-Bukhari 5829
صحيح البخاري#5829Sahihحَدَّثَنَا أَحْمَدُ بْنُ يُونُسَ، حَدَّثَنَا زُهَيْرٌ، حَدَّثَنَا عَاصِمٌ، عَنْ أَبِي عُثْمَانَ، قَالَ كَتَبَ إِلَيْنَا عُمَرُ وَنَحْنُ بِأَذْرَبِيجَانَ أَنَّ النَّبِيَّ صلى الله عليه وسلم نَهَى عَنْ لُبْسِ الْحَرِيرِ إِلاَّ هَكَذَا، وَصَفَّ لَنَا النَّبِيُّ صلى الله عليه وسلم إِصْبَعَيْهِ. وَرَفَعَ زُهَيْرٌ الْوُسْطَى وَالسَّبَّابَةَ.
Narrated Abu `Uthman:While we were at Adharbijan, `Umar wrote to us: 'Allah's Messenger (ﷺ) forbade wearing silk except this much. Then the Prophet (ﷺ) approximated his two fingers (index and middle fingers) (to illustrate that) to us.' Zuhair (the sub-narrator) raised up his middle and index fingers
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: 77:46