صحيح البخاري Sahih Bukhari كتاب الاستئذان The Book of Asking Permission
بَابُ بِمَنْ يُبْدَأُ فِي الْكِتَابِ:

(25) Chapter. Whose name is to be written first in a letter, i.e., the sender or the addressee?

1 hadith
Hadith 6261
وَقَالَ اللَّيْثُ : حَدَّثَنِي جَعْفَرُ بْنُ رَبِيعَةَ ، عَنْ عَبْدِ الرَّحْمَنِ بْنِ هُرْمُزَ ، عَنْ أَبِي هُرَيْرَةَ رَضِيَ اللَّهُ عَنْهُ ، عَنْ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ : أَنَّهُ ذَكَرَ رَجُلًا مِنْ بَنِي إِسْرَائِيلَ أَخَذَ خَشَبَةً ، فَنَقَرَهَا فَأَدْخَلَ فِيهَا أَلْفَ دِينَارٍ وَصَحِيفَةً مِنْهُ إِلَى صَاحِبِهِ.
Narrated Abu Hurairah (ra): Allah's Messenger (saws) mentioned a person from Bani Israel who took a piece of wood, made a hole in it, and put therein one thousand Dinar and letter from him to his friend. The Prophet (saws) said, "(That man) cut a piece of wood and put the money inside it and wrote a letter from such and such a person to such and such a person."
Hadith Reference Sahih Bukhari / The Book of Asking Permission / Hadith: 6261
Hadith Grading محدثین: أحاديث صحيح البخاريّ كلّها صحيحة