Whoever Allah saves from the evil of what is between his jaws and the evil of what is between his legs will enter Paradise
Authentic hadithعن أبي هريرة رضي الله عنه قال: قال رسول الله صلى الله عليه وسلم : «من وقاه الله شر ما بين لَحْيَيْهِ، وشر ما بين رجليه دخل الجنة».
Abu Hurayrah (may Allah be pleased with him) reported that the Prophet (may Allah's peace and blessings be upon him) said: "Whoever Allah saves from the evil of what is between his jaws and the evil of what is between his legs will enter Paradise."
Explanation
The person whom Allah, the Almighty, protects from saying what incurs His wrath and from committing adultery has been saved and will enter Paradise.
Source · Narrated by At-Termedhy
From the Hadith Encyclopedia (hadeethenc.com).