عَنْ أُبَيِّ بْنِ كَعْبٍ رَضِيَ اللَّهُ عَنْهُ قَالَ الْتَقَطْتُ عَلَى عَهْدِ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ مِائَةَ دِينَارٍ فَأَتَيْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ فَقَالَ عَرِّفْهَا سَنَةً فَعَرَّفْتُهَا سَنَةً ثُمَّ أَتَيْتُهُ فَقُلْتُ قَدْ عَرَّفْتُهَا سَنَةً فَقَالَ عَرِّفْهَا سَنَةً أُخْرَى فَعَرَّفْتُهَا سَنَةً أُخْرَى ثُمَّ أَتَيْتُهُ فِي الثَّالِثَةِ فَقَالَ أَحْصِ عَدَدَهَا وَوِكَاءَهَا وَاسْتَمْتِعْ بِهَا
Narrated from Sayyiduna Ubayy bin Ka'b (may Allah be pleased with him), he says: In the time of the Prophet (peace and blessings be upon him), I picked up one hundred dinars (which someone had lost) and came to the Messenger of Allah (peace and blessings be upon him). He (peace and blessings be upon him) said: Announce it for one year. I announced it for one year and then came to the Messenger of Allah (peace and blessings be upon him) and said that I have announced it for one year. He (peace and blessings be upon him) said: Announce it for another year. So I announced it for another year and then came to the Messenger of Allah (peace and blessings be upon him) and said that I have announced it for another year. This time, he (peace and blessings be upon him) said: Now count them, recognize its strap, and benefit from them.