Anas bin Malik reported,

My uncle Anas bin Nadr was absent from the Battle of Badr, and he said, "Messenger of Allah, I was absent from the first battle you fought against the polytheists. If Allah grants me the chance to witness battle against the polytheists, Allah will surely see what I do."When the day of Uhud came and the Muslims were routed, he said, "O Allah, I disassociate myself from what these have done," meaning his companions, "and I dissociate myself from what these have done," meaning the polytheists. Then he advanced.Saad bin Muaz met him, and Anas said, "Saad bin Muaz, paradise! By the Lord of Nadr, I can smell its fragrance coming from beyond Uhud."Saad said, "Messenger of Allah, I could not do what he did."Anas said, "We found on his body more than eighty wounds, between sword strikes, spear thrusts, and arrow shots. We found him killed, and the polytheists had mutilated him so badly that no one could recognize him except his sister, who identified him by his fingertips."Anas said, "We used to think, or believe, that this verse was revealed about him and those like him, 'Among the believers are men who have been true to the covenant they made with Allah' [Ahzab 33:23], to the end of the verse."He also said that his sister, named Rabi, broke the front tooth of a woman, and the Messenger of Allah ﷺ ordered retaliation in kind. Anas said, "Messenger of Allah, by the One who sent you with the truth, her tooth shall not be broken." So they accepted compensation and waived retaliation, and the Messenger of Allah ﷺ said, "Among the servants of Allah are those who, if they swear an oath by Allah, He fulfills it for them."

Bukhari 2806

Sahih

حدثنا محمد بن سعيد الخزاعي، حدثنا عبد الأعلى، عن حميد، قال سألت أنسا. حدثنا عمرو بن زرارة، حدثنا زياد، قال حدثني حميد الطويل،

عن أنس رضى الله عنه قال

غاب عمي أنس بن النضر عن قتال بدر فقال يا رسول الله، غبت عن أول قتال قاتلت المشركين، لئن الله أشهدني قتال المشركين ليرين الله ما أصنع، فلما كان يوم أحد وانكشف المسلمون قال اللهم إني أعتذر إليك مما صنع هؤلاء يعني أصحابه وأبرأ إليك مما صنع هؤلاء يعني المشركين ثم تقدم، فاستقبله سعد بن معاذ، فقال يا سعد بن معاذ، الجنة، ورب النضر إني أجد ريحها من دون أحد. قال سعد فما استطعت يا رسول الله ما صنع. قال أنس فوجدنا به بضعا وثمانين ضربة بالسيف أو طعنة برمح أو رمية بسهم، ووجدناه قد قتل وقد مثل به المشركون، فما عرفه أحد إلا أخته ببنانه. قال أنس كنا نرى أو نظن أن هذه الآية نزلت فيه وفي أشباهه {من المؤمنين رجال صدقوا ما عاهدوا الله عليه} إلى آخر الآية. وقال إن أخته وهى تسمى الربيع كسرت ثنية امرأة فأمر رسول الله ﷺ بالقصاص، فقال أنس يا رسول الله، والذي بعثك بالحق لا تكسر ثنيتها. فرضوا بالأرش وتركوا القصاص، فقال رسول الله ﷺ إن من عباد الله من لو أقسم على الله لأبره.

البخاري 2806صحيح
Contents
Reference
Commentary
Ayat
Collection
Sahih Bukhari
Book
Jihad and expeditions
Chapter
Allah's saying, "Among the believers are men true to what they promised Allah. Among them is he who has fulfilled his vow, and among them is he who awaits, and they did not alter by any alteration"
Numbering
Darussalam 2806
Bukhari 2806