If someone finds a thing in the sea
باب إِذَا وَجَدَ خَشَبَةً فِي الْبَحْرِ أَوْ سَوْطًا أَوْ نَحْوَهُ
Sahih al-Bukhari, Book of Lost Things Picked up by Someone (Luqatah)(view book)
Sahih al-Bukhari 2430
Narrated 'Abdur-Rahman bin Hurmuz:
Abu Hurairah (ra) said, "Allah's Messenger ﷺ 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]
وَقَالَ اللَّيْثُ حَدَّثَنِي جَعْفَرُ بْنُ رَبِيعَةَ، عَنْ عَبْدِ الرَّحْمَنِ بْنِ هُرْمُزَ، عَنْ أَبِي هُرَيْرَةَ ـ رضى الله عنه ـ عَنْ رَسُولِ اللَّهِ ﷺ أَنَّهُ ذَكَرَ رَجُلاً مِنْ بَنِي إِسْرَائِيلَ ـ وَسَاقَ الْحَدِيثَ ـ "فَخَرَجَ يَنْظُرُ لَعَلَّ مَرْكَبًا قَدْ جَاءَ بِمَالِهِ، فَإِذَا هُوَ بِالْخَشَبَةِ فَأَخَذَهَا لأَهْلِهِ حَطَبًا، فَلَمَّا نَشَرَهَا وَجَدَ الْمَالَ وَالصَّحِيفَةَ "