Sunan an-Nasa'i al-Kubra 4712
Muḥammad b. Manṣūr > Sufyān > Abū al-Zaʿrāʾ from his uncle Abū al-Aḥwaṣ from his father
"I said: 'O Messenger of Allah, I have a cousin, and I come to him and ask him (for help) but he does not give me anything, and he does not uphold the ties of kinship with me. Then, when he needs me, he comes to me and asks me (for help). I swore that I would not give him anything, nor uphold the ties of kinship with him.' He commanded me to do that which is better and to offer expiation for my oath."
أَخْبَرَنَا مُحَمَّدُ بْنُ مَنْصُورٍ عَنْ سُفْيَانَ قَالَ حَدَّثَنَا أَبُو الزَّعْرَاءِ عَنْ عَمِّهِ أَبِي الْأَحْوَصِ عَنْ أَبِيهِ قَالَ
قُلْتُ يَا رَسُولَ اللهِ أَرَأَيْتَ ابْنَ عَمٍّ آتِيهِ أَسْأَلُهُ فَلَا يُعْطِينِي وَلَا يَصِلُنِي ثُمَّ يَحْتَاجُ إِلَيَّ فَيَأْتِينِي فَيَسْأَلُنِي وَقَدْ حَلَفْتُ أَلَّا أُعْطِيَهُ وَلَا أَصِلُهُ «فَأَمَرَنِي أَنْ آتِيَ الَّذِي هُوَ خَيْرٌ وَأُكَفِّرَ عَنْ يَمِينِي»