كتاب النكاح
16  
The Book of Marriage
(1)
Chapter: Marriage is recommended for the one who desires it and can afford it, and the one who cannot afford it should distract himself by fasting
(1)
باب اسْتِحْبَابِ النِّكَاحِ لِمَنْ تَاقَتْ نَفْسُهُ إِلَيْهِ وَوَجَدَ مُؤْنَةً وَاشْتِغَالِ مَنْ عَجَزَ عَنِ الْمُؤَنِ بِالصَّوْمِ
Sahih Muslim 1400 e

'Abd al-Rahman b. Yazid reported on the authority of Abdullah:

We went to him, and I was the youngest of all (of us), but he did not mention:" I lost no time in marrying."
حَدَّثَنِي عَبْدُ اللَّهِ بْنُ سَعِيدٍ الأَشَجُّ، حَدَّثَنَا وَكِيعٌ، حَدَّثَنَا الأَعْمَشُ، عَنْ عُمَارَةَ بْنِ، عُمَيْرٍ عَنْ عَبْدِ الرَّحْمَنِ بْنِ يَزِيدَ، عَنْ عَبْدِ اللَّهِ، قَالَ دَخَلْنَا عَلَيْهِ وَأَنَا أَحْدَثُ الْقَوْمِ، بِمِثْلِ حَدِيثِهِمْ وَلَمْ يَذْكُرْ فَلَمْ أَلْبَثْ حَتَّى تَزَوَّجْتُ ‏.‏
Reference : Sahih Muslim 1400e
In-book reference : Book 16, Hadith 5
USC-MSA web (English) reference : Book 8, Hadith 3235
  (deprecated numbering scheme)