Al-Kāfi - Volume 5 > Hard Work for Marriage
Hadith #1

1- عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ عَنِ النَّوْفَلِيِّ عَنِ السَّكُونِيِّ عَنْ أَبِي عَبْدِ اللهِ (عَلَيْهِ السَّلام) قَالَ قَالَ أَمِيرُ الْمُؤْمِنِينَ (عَلَيْهِ السَّلام) أَفْضَلُ الشَّفَاعَاتِ أَنْ تَشْفَعَ بَيْنَ اثْنَيْنِ فِي نِكَاحٍ حَتَّى يَجْمَعَ اللهُ بَيْنَهُمَا.

1. Ali ibn Ibrahim has narrated from his father from af-Nawfafiy from af-Sakuniy who has said the following: “Abu ‘ Abd Allah, ‘Alayhi al-Salam, has said that ’Amir al-Mu’minin has said, The best intercession and mediation is that between two people until Allah unites them in marriage.’”