Al-Adab Al-Mufrad, Book 14, Hadith 289 (English) ⓘ

Abu Hurayra reported that the Prophet, may Allah bless him and grant him peace, said, "Do you know what it is that makes most people enter the Fire?" "Allah and His Messenger know best," they said. He said, "The two empty ones: the genitals and the mouth. Do you know what it is that makes most people enter the Garden? Taqwa of Allah and good character."

حَدَّثَنَا أَبُو نُعَيْمٍ، قَالَ‏:‏ حَدَّثَنَا دَاوُدُ بْنُ يَزِيدَ قَالَ‏:‏ سَمِعْتُ أَبِي يَقُولُ‏:‏ سَمِعْتُ أَبَا هُرَيْرَةَ يَقُولُ‏:‏ قَالَ النَّبِيُّ صلى الله عليه وسلم‏:‏ تَدْرُونَ مَا أَكْثَرُ مَا يُدْخِلُ النَّارَ‏؟‏ قَالُوا‏:‏ اللَّهُ وَرَسُولُهُ أَعْلَمُ، قَالَ‏:‏ الأَجْوَفَانِ‏:‏ الْفَرْجُ وَالْفَمُ، وَأَكْثَرُ مَا يُدْخِلُ الْجَنَّةَ‏؟‏ تَقْوَى اللهِ وَحُسْنُ الْخُلُقِ‏.‏