حَدَّثَنَا قُتَيْبَةُ حَدَّثَنَا لَيْثٌ عَنْ نَافِعٍ عَنْ ابْنِ عُمَرَ رَضِيَ اللَّهُ عَنْهُمَا أَنَّهُ أَدْرَکَ عُمَرَ بْنَ الْخَطَّابِ فِي رَکْبٍ وَهُوَ يَحْلِفُ بِأَبِيهِ فَنَادَاهُمْ رَسُولُ اللَّهِ صَلَّی اللَّهُ عَلَيْهِ وَسَلَّمَ أَلَا إِنَّ اللَّهَ يَنْهَاکُمْ أَنْ تَحْلِفُوا بِآبَائِکُمْ فَمَنْ کَانَ حَالِفًا فَلْيَحْلِفْ بِاللَّهِ وَإِلَّا فَلْيَصْمُتْ
صحیح بخاری · Hadith 6108
Narrated Ibn `Umar: that he found `Umar bin Al-Khattab in a group of people and he was swearing by his father. So Allah's Apostle called them, saying, "Verily! Allah forbids you to swear by your fathers. If one has to take an oath, he should swear by Allah or otherwise keep quiet."
Translated by Dr. Muhammad Muhsin Khan · Reviewed by Islamic University of Madinah · Published March 2020