Arabic (Original)
حَدَّثَنَا عَبْدُ الرَّزَّاقِ أَخْبَرَنَا سُفْيَانُ عَنْ أَبِيهِ وَالْأَعْمَشِ وَمَنْصُورٍ عَنْ سَعْدِ بْنِ عُبَيْدَةَ عَنِ ابْنِ عُمَرَ قَالَ كَانَ عُمَرُ يَحْلِفُ وَأَبِي فَنَهَاهُ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ مَنْ حَلَفَ بِشَيْءٍ دُونَ اللَّهِ تَعَالَى فَقَدْ أَشْرَكَ وَقَالَ الْآخَرُ وَهُوَ شِرْكٌ.
English Translation
Abd al-Razzaq told us: Sufyan informed us, from his father, and al-A'mash, and Mansur, from Sa'd ibn Ubaydah, from Ibn Umar, who said: Umar used to swear 'By my father,' so the Prophet, peace and blessings be upon him, forbade him and said: 'Whoever swears by other than Allah, Exalted is He, has committed shirk.' And the other narrator said: 'And it is shirk.'