Sahih al-Bukhari 6146
Sahih al-Bukhari · Book 78: Good Manners and Form (Al-Adab) · What kinds of poetry, Rajaz and Huda is allowed
Narrated Jundub:
حَدَّثَنَا أَبُو نُعَيْمٍ ، حَدَّثَنَا سُفْيَانُ ، عَنِ الأَسْوَدِ بْنِ قَيْسٍ ، سَمِعْتُ جُنْدَبًا ، يَقُولُ بَيْنَمَا النَّبِيُّ صلى الله عليه وسلم يَمْشِي إِذْ أَصَابَهُ حَجَرٌ فَعَثَرَ فَدَمِيَتْ إِصْبَعُهُ فَقَالَ " هَلْ أَنْتِ إِلاَّ إِصْبَعٌ دَمِيتِ وَفِي سَبِيلِ اللَّهِ مَا لَقِيتِ " .
While the Prophet (ﷺ) was walking, a stone hit his foot and stumbled and his toe was injured. He then (quoting a poetic verse) said, "You are not more than a toe which has been bathed in blood in Allah's Cause."