Sahih
Al Bukhari
صحيح البخاري
64
Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi)
كتاب المغازى
Chapter 35: The Ghazwa of Al-Hudaibiya
باب غَزْوَةِ الْحُدَيْبِيَةِ
Sahih Al Bukhari 4174
The same narration was told by Majzaa from a man called Uhban bin Aus who was one of those who had witnessed (the Pledge of allegiance beneath) the Tree., and who had some trouble in his knee so that while doing prostrations, he used to put a pillow underneath his knee.
وَعَنْ مَجْزَأَةَ، عَنْ رَجُلٍ، مِنْهُمْ مِنْ أَصْحَابِ الشَّجَرَةِ اسْمُهُ أُهْبَانُ بْنُ أَوْسٍ وَكَانَ اشْتَكَى رُكْبَتَهُ، وَكَانَ إِذَا سَجَدَ جَعَلَ تَحْتَ رُكْبَتِهِ وِسَادَةً.
Grade: Sahih