Sayyiduna Abu Hurayrah (may Allah be pleased with him) says that the Prophet (peace and blessings be upon him) said: "Injury caused by an animal is of no account, the foot is of no account, and injury in a well and while extracting minerals is of no account, and in buried treasure (rikaz) there is one fifth."
Abu al-Hasan al-Daraqutni said: This is how he narrated it, and it is a mistake; no one corroborated him on it from Shu'bah.
The Shaykh said: This hadith was narrated from Shu'bah by Muhammad bin Ja'far Ghundar, who is the authority on the hadith of Shu'bah, and by Mu'adh bin Mu'adh al-Anbari, Muslim bin Ibrahim, Abu Umar al-Hawdi and others, without this addition. Likewise al-Rabi' bin Muslim narrated it from Muhammad bin Ziyad without this addition.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الأشربة والحد فيها / 17691