Jami At Tirmidhi
415
Sahih+3

Umm Habibah narrated that Allah's Messenger (S) sad:"Whoever prays twelve Rak'ah in a day and night, a house will be built from him in Paradise: Four Rak'ah before Zuhr, two Rak'ah after it, two Rak'ah after Maghrib, two Rak'ah after Isha, and two Rak'ah before Fajr in the morning Salat

SahihAhmad Muhammad Shakir
SahihAl-Albani