Language:
كتاب مناقب الأنصار
63  
Merits of the Helpers in Madinah (Ansaar)
(43)
Chapter: The deputation of the Ansar to the Prophet (saws) at Makkah, and the Al-Aqaba
(43)
باب وُفُودُ الأَنْصَارِ إِلَى النَّبِيِّ صلى الله عليه وسلم بِمَكَّةَ وَبَيْعَةُ الْعَقَبَةِ
Sahih al-Bukhari 3892

Narrated 'Ubada bin As-Samit:

Who had taken part in the battle of Badr with Allah's Messenger (ﷺ) and had been amongst his companions on the night of Al-`Aqaba Pledge: Allah's Messenger (ﷺ), surrounded by a group of his companions said, "Come along and give me the pledge of allegiance that you will not worship anything besides Allah, will not steal, will not commit illegal sexual intercourse will not kill your children, will not utter; slander, invented by yourself, and will not disobey me if I order you to do something good. Whoever among you will respect and fulfill this pledge, will be rewarded by Allah. And if one of you commits any of these sins and is punished in this world then that will be his expiation for it, and if one of you commits any of these sins and Allah screens his sin, then his matter, will rest with Allah: If He will, He will punish him and if He will,. He will excuse him." So I gave the pledge of allegiance to him for these conditions.

حَدَّثَنِي إِسْحَاقُ بْنُ مَنْصُورٍ، أَخْبَرَنَا يَعْقُوبُ بْنُ إِبْرَاهِيمَ، حَدَّثَنَا ابْنُ أَخِي ابْنِ شِهَابٍ، عَنْ عَمِّهِ، قَالَ أَخْبَرَنِي أَبُو إِدْرِيسَ، عَائِذُ اللَّهِ أَنَّ عُبَادَةَ بْنَ الصَّامِتِ ـ مِنَ الَّذِينَ شَهِدُوا بَدْرًا مَعَ رَسُولِ اللَّهِ صلى الله عليه وسلم ـ وَمِنْ أَصْحَابِهِ لَيْلَةَ الْعَقَبَةِ ـ أَخْبَرَهُ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ وَحَوْلَهُ عِصَابَةٌ مِنْ أَصْحَابِهِ ‏ "‏ تَعَالَوْا بَايِعُونِي عَلَى أَنْ لاَ تُشْرِكُوا بِاللَّهِ شَيْئًا، وَلاَ تَسْرِقُوا، وَلاَ تَزْنُوا، وَلاَ تَقْتُلُوا أَوْلاَدَكُمْ، وَلاَ تَأْتُونَ بِبُهْتَانٍ تَفْتَرُونَهُ بَيْنَ أَيْدِيكُمْ وَأَرْجُلِكُمْ، وَلاَ تَعْصُونِي فِي مَعْرُوفٍ، فَمَنْ وَفَى مِنْكُمْ فَأَجْرُهُ عَلَى اللَّهِ، وَمَنْ أَصَابَ مِنْ ذَلِكَ شَيْئًا فَعُوقِبَ بِهِ فِي الدُّنْيَا فَهْوَ لَهُ كَفَّارَةٌ، وَمَنْ أَصَابَ مِنْ ذَلِكَ شَيْئًا فَسَتَرَهُ اللَّهُ فَأَمْرُهُ إِلَى اللَّهِ، إِنْ شَاءَ عَاقَبَهُ، وَإِنْ شَاءَ عَفَا عَنْهُ ‏"‏‏.‏ قَالَ فَبَايَعْتُهُ عَلَى ذَلِكَ‏.‏
Reference : Sahih al-Bukhari 3892
In-book reference : Book 63, Hadith 117
USC-MSA web (English) reference : Vol. 5, Book 58, Hadith 232
  (deprecated numbering scheme)