عَنْ أَبِي هُرَيْرَةَ رَضِيَ اللَّهُ عَنْهُ عَنِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ قَالَ ((إِنَّ أَكْثَرَ مَا يُدْخِلُ النَّاسَ النَّارَ الْأَجْوَفَانِ)) قَالُوا يَا رَسُولَ اللَّهِ وَمَا الْأَجْوَفَانِ قَالَ ((الْفَرْجُ وَالْفَمُ)) قَالَ ((أَتَدْرُونَ أَكْثَرَ مَا يُدْخِلُ النَّاسَ الْجَنَّةَ تَقْوَى اللَّهِ وَحُسْنُ الْخُلُقِ))
It is narrated from Sayyiduna Abu Hurairah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him and his family) said: Indeed, the thing that causes most people to enter Hell is al-ajwafān. The people asked: O Messenger of Allah! What is meant by al-ajwafān? He (peace and blessings be upon him and his family) said: The private parts and the mouth. Then he (peace and blessings be upon him and his family) said: Do you know what thing will cause most people to enter Paradise? The fear of Allah and good character.