Sahih Muslim
Sahih Muslim 1645
وَحَدَّثَنِي هَارُونُ بْنُ سَعِيدٍ الأَيْلِيُّ، وَيُونُسُ بْنُ عَبْدِ الأَعْلَى، وَأَحْمَدُ بْنُ عِيسَى، قَالَ يُونُسُ أَخْبَرَنَا وَقَالَ الآخَرَانِ، حَدَّثَنَا ابْنُ وَهْبٍ، أَخْبَرَنِي عَمْرُو بْنُ الْحَارِثِ، عَنْ كَعْبِ بْنِ، عَلْقَمَةَ عَنْ عَبْدِ الرَّحْمَنِ بْنِ شُمَاسَةَ، عَنْ أَبِي الْخَيْرِ، عَنْ عُقْبَةَ بْنِ عَامِرٍ، عَنْ رَسُولِ اللَّهِ صلى الله عليه وسلم قَالَ " كَفَّارَةُ النَّذْرِ كَفَّارَةُ الْيَمِينِ " .
Harun ibn Said al-Ayli, Yunus ibn Abd al-Ala, and Ahmad ibn Isa narrated to me. Yunus said, Ibn Wahb informed us; the other two said, Ibn Wahb narrated to us; Amr ibn al-Harith informed me from Kab ibn Alqamah, from Abd al-Rahman ibn Shumasah, from Abu al-Khayr, from Uqbah ibn Amir, from the Messenger of Allah (peace and blessings be upon him), who said: 'The expiation for a vow is the same as the expiation for an oath.'