Yahya related to me from Malik from Ibn Shihab from Said ibn al- Musayyab and from Abu Salama ibn Abd ar-Rahman from Abu Hurayra that the Messenger of Allah ﷺ ,said, "There is a tax of a fifth on buried treasure."

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ فِي الرِّكَازِ الْخُمُسُ