كتاب النكاح
Read the English translation first, with the original Arabic directly underneath.
It was narrated from Abdur-Rahman bin Salim bin Utbah bin Salim bin Uwaim bin Sa'idah Al-Ansari, from his father that:
his grandfather said: “The Messenger of Allah said: 'You should marry virgins, for their mouths are sweeter, their wombs are more prolific and they are satisfied with less.'”
عَلَيْكُمْ بِالأَبْكَارِ فَإِنَّهُنَّ أَعْذَبُ أَفْوَاهًا وَأَنْتَقُ أَرْحَامًا وَأَرْضَى بِالْيَسِيرِ