Messenger of Allah ﷺ said, "Whoever can guarantee (the chastity of) what is between his two jaw-bones and what is between his two legs (i.e. his tongue and his private parts), I guarantee Paradise for him."  

عَنْ رَسُولِ اللَّهِ ﷺ قَالَ مَنْ يَضْمَنْ لِي مَا بَيْنَ لَحْيَيْهِ وَمَا بَيْنَ رِجْلَيْهِ أَضْمَنْ لَهُ الْجَنَّةَ  

"For whomever Allah protects against the evil of what is between his jaws and the evil of what is between his legs, he shall enter Paradise." (Using translation from Tirmidhī 2409)   

قَالَ رَسُولُ اللَّهِ ﷺ «مَنْ وُقِيَ شَرَّ مَا بَيْنَ لَحْيَيْهِ وَرِجْلَيْهِ دَخَلَ الْجَنَّةَ»  

"مَنْ حَفِظَ مَا بَينَ لَحْيَيهِ وَمَا بَينَ رِجْلَيهِ، دَخَلَ الْجَنَّةَ".  

" مَنْ يَضْمَنْ لِي مَا بَينَ لحْيَيهِ وَمَا بَينَ رِجْلَيهِ أَضْمَنْ لَهُ الْجَنَّةَ".