صحيح البخاري Sahih Bukhari كتاب اللقطة The Book Or Al-Luqata
بَابُ إِذَا وَجَدَ خَشَبَةً فِي الْبَحْرِ أَوْ سَوْطًا أَوْ نَحْوَهُ:

(5) Chapter. If someone finds a piece of wood or a lash or similar things in the sea.

1 hadith
Hadith 2430
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 وَسَاقَ الْحَدِيثَ ، فَخَرَجَ يَنْظُرُ لَعَلَّ مَرْكَبًا قَدْ جَاءَ بِمَالِهِ ، فَإِذَا هُوَ بِالْخَشَبَةِ ، فَأَخَذَهَا لِأَهْلِهِ حَطَبًا ، فَلَمَّا نَشَرَهَا وَجَدَ الْمَالَ وَالصَّحِيفَةَ " .
Narrated 'Abdur-Rahman bin Hurmuz: Abu Hurairah (ra) said, "Allah's Messenger (saws) mentioned an Israeli man." Abu Hurairah then told the whole narration). (At the end of the narration it was mentioned that the creditor) went out to the sea, hoping that a boat might have brought his money. Suddenly he saw a piece of wood and he took it to his house to use as firewood. When he sawed it, he found his money and a letter in it. [See hadith No. 2291 for details]
Hadith Reference Sahih Bukhari / The Book Or Al-Luqata / Hadith: 2430
Hadith Grading محدثین: أحاديث صحيح البخاريّ كلّها صحيحة