صحيح البخاري Sahih Bukhari كتاب الأيمان والنذور The Book of Oaths and Vows
بَابُ إِذَا قَالَ أَشْهَدُ بِاللَّهِ، أَوْ شَهِدْتُ بِاللَّهِ:

(10) Chapter. If one says: “I bear witness swearing by Allah” or "I have borne witness swearing by Allah."

1 hadith
Hadith 6658
حَدَّثَنَا سَعْدُ بْنُ حَفْصٍ ، حَدَّثَنَا شَيْبَانُ ، عَنْ مَنْصُورٍ ، عَنْ إِبْرَاهِيمَ ، عَنْ عَبِيدَةَ ، عَنْ عَبْدِ اللَّهِ ، قَالَ : سُئِلَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ ، أَيُّ النَّاسِ خَيْرٌ ؟ قَالَ : " قَرْنِي ، ثُمَّ الَّذِينَ يَلُونَهُمْ ، ثُمَّ الَّذِينَ يَلُونَهُمْ ، ثُمَّ يَجِيءُ قَوْمٌ تَسْبِقُ شَهَادَةُ أَحَدِهِمْ يَمِينَهُ ، وَيَمِينُهُ شَهَادَتَهُ " ، قَالَ إِبْرَاهِيمُ : وَكَانَ أَصْحَابُنَا يَنْهَوْنَا وَنَحْنُ غِلْمَانٌ ، أَنْ نَحْلِفَ بِالشَّهَادَةِ وَالْعَهْدِ .
Narrated `Abdullah: The Prophet was asked, "Who are the best people?" He replied: The people of my generation, and then those who will follow (come after) them, and then those who will come after the later; after that there will come some people whose witness will precede their oaths and their oaths will go ahead of their witness." Ibrahim (a sub-narrator) said, "When we were young, our elder friends used to prohibit us from taking oaths by saying, 'I bear witness swearing by Allah, or by Allah's Covenant."'
Hadith Reference Sahih Bukhari / The Book of Oaths and Vows / Hadith: 6658
Hadith Grading محدثین: أحاديث صحيح البخاريّ كلّها صحيحة