The Prophet ﷺ said: If anyone keeps on praying regularly four rak'ahs before and four after the noon prayer, he will not enter the Hell-fire. Abu Dawud said: Al-'Ala' bin Al-Harith and Sulaiman bin Musa reported it from Makhul with his chain, similarly.  

أُمُّ حَبِيبَةَ زَوْجُ النَّبِيِّ ﷺ قَالَ رَسُولُ اللَّهِ ﷺ مَنْ حَافَظَ عَلَى أَرْبَعِ رَكَعَاتٍ قَبْلَ الظُّهْرِ وَأَرْبَعٍ بَعْدَهَا حَرُمَ عَلَى النَّارِ  

The Prophet ﷺ said: The gates of heaven are opened for four rak'ahs containing no taslim (salutation) before the noon prayer. Abu Dawud said: Yahya b. Sa'id al-Qattan said: If I were to narrate any tradition from 'Ubaidah, I would narrate this tradition. Abu Dawud said: 'Ubaidah is weak. Abu Dawud said: The name of the narrator Ibn Minjab is Sahm.  

عَنِ النَّبِيِّ ﷺ قَالَ أَرْبَعٌ قَبْلَ الظُّهْرِ لَيْسَ فِيهِنَّ تَسْلِيمٌ تُفْتَحُ لَهُنَّ أَبْوَابُ السَّمَاءِ