Arabic (Original)
حَدَّثَنَا وَكِيعٌ حَدَّثَنَا الْأَعْمَشُ عَنْ سَعْدِ بْنِ عُبَيْدَةَ قَالَ كُنْتُ مَعَ ابْنِ عُمَرَ فِي حَلْقَةٍ فَسَمِعَ رَجُلًا فِي حَلْقَةٍ أُخْرَى وَهُوَ يَقُولُ لَا وَأَبِي فَرَمَاهُ ابْنُ عُمَرَ بِالْحَصَى وَقَالَ إِنَّهَا كَانَتْ يَمِينَ عُمَرَ فَنَهَاهُ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ عَنْهَا وَقَالَ إِنَّهَا شِرْكٌ.
English Translation
Waki' narrated to us: al-A'mash narrated to us, from Sa'd ibn 'Ubaydah, who said: I was with Ibn 'Umar in a gathering, and he heard a man in another gathering saying: 'No, by my father!' So Ibn 'Umar threw a pebble at him and said: 'That was 'Umar's oath, and the Prophet, peace and blessings be upon him, forbade it and said: It is shirk.'