Sunan Ibn Majah, Volume 2, Book 5, Hadith 1142 (DarusSalam) ⓘ
It was narrated that Abu Hurairah said: “The Messenger of Allah said: ‘Whoever performs twelve Rak’ah (of Sunnah) each day, a house will be built for him in Paradise: two Rak’ah before Fajr, two Rak’ah before the Zuhr, two Rak’ah after the Zuhr, two Rak’ah, I think he said, before ‘Asr, two Rak’ah after Maghrib, and I think he said two Rak’ah after the ‘Isha’.’”
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا مُحَمَّدُ بْنُ سُلَيْمَانَ بْنِ الأَصْبَهَانِيِّ، عَنْ سُهَيْلٍ، عَنْ أَبِيهِ، عَنْ أَبِي هُرَيْرَةَ، قَالَ قَالَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ " مَنْ صَلَّى فِي يَوْمٍ ثِنْتَىْ عَشْرَةَ رَكْعَةً بُنِيَ لَهُ بَيْتٌ فِي الْجَنَّةِ رَكْعَتَيْنِ قَبْلَ الْفَجْرِ وَرَكْعَتَيْنِ قَبْلَ الظُّهْرِ وَرَكْعَتَيْنِ بَعْدَ الظُّهْرِ وَرَكْعَتَيْنِ - أَظُنُّهُ قَالَ - قَبْلَ الْعَصْرِ وَرَكْعَتَيْنِ بَعْدَ الْمَغْرِبِ - أَظُنُّهُ قَالَ - وَرَكْعَتَيْنِ بَعْدَ الْعِشَاءِ الآخِرَةِ " .
also referenced under: Hadith 1142 (Reference) & Book 5, Hadith 1196 (In-Book)