Hadith 3086
Al hasan said “Rikaz means treasure buried in pre Islamic times. ”
Hadith 4609
Abu Hurairah reported the Messenger of Allah ﷺ as saying: If anyone summons other to follow right guidance, his reward will be equivalent to that of the people who follow him, without their rewards being diminished in any respect on that account; and if anyone summons others to follow error the sin of which sins being diminished in any respect on that account.
Hadith 5188
Narrated Nafi ibn AbdulHarith: I went out with the (Messenger of Allah ﷺ until I entered a garden, he said: Keep on closing the door. The door was then closed. I then said: Who is there ? He then narrated the rest of the tradition. Abu Dawud said: That is to say, the tradition of Abu Musa al-Ashari. In this version he said: "He then knocked at the door. "