عَنْ يَعْلَى بْنِ مُرَّةَ رَضِيَ اللَّهُ عَنْهُ قَالَ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ مَنِ الْتَقَطَ لُقْطَةً يَسِيرَةً دِرْهَمًا أَوْ حَبْلًا أَوْ شِبْهَ ذَلِكَ فَلْيُعَرِّفْهُ ثَلَاثَةَ أَيَّامٍ فَإِنْ كَانَ فَوْقَ ذَلِكَ فَلْيُعَرِّفْهُ سَنَةً
Sayyiduna Ali bin Murrah (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said: Whoever finds a trivial thing that has fallen, such as a dirham, a rope, or something similar, should announce it for three days. And if he finds something more valuable than that, he should announce it for one year.