'A'isha said, "I used to eat date and butter mixture with the Prophet, may Allah bless him and grant him peace. 'Umar visited and the Prophet invited him and he ate. 'Umar's hand touched my fingers and he said, 'Oh! If I were to be obeyed about you, no eye would ever see you!' Then the veil was revealed."  

عَنْ عَائِشَةَ رَضِيَ اللَّهُ عَنْهَا قَالَتْ كُنْتُ آكُلُ مَعَ النَّبِيِّ ﷺ حَيْسًا فَمَرَّ عُمَرُ فَدَعَاهُ فَأَكَلَ فَأَصَابَتْ يَدُهُ إِصْبَعِي فَقَالَ حَسِّ لَوْ أُطَاعُ فَيَكُنَّ مَا رَأَتْكُنَّ عَيْنٌ فَنَزَلَ الْحِجَابُ  

Umm Habiba bint Qays (Khawla) was heard to say, "My hand and that of the Messenger of Allah, may Allah bless him and grant him peace, mixed together in the same vessel."  

أَنَّهُ سَمِعَهَا تَقُولُ اخْتَلَفَتْ يَدِي وَيَدُ رَسُولِ اللهِ ﷺ فِي إِنَاءٍ وَاحِدٍ