It wasnarrated that Abu Hurairah said:
"The Prophet (ﷺ) was asked:'What most admits people to Paradise?' He said: 'Piety and goodmanners.' And he was asked: 'What most leads people to Hell?'He said:'The two hollow ones: The mouth and the private part.'" (RU)
English reference (RU): Vol. 5, Book 37, Hadith 4246 (RU)
Arabic reference (RU): Book 37, Hadith 4387 (RU)