Silsilat al-Ahadith al-Sahihah

Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) says that I was breaking a miswak from a tree for the Messenger of Allah (peace and blessings of Allah be upon him). People began to laugh at my thin shins. The Noble Prophet (peace and blessings of Allah be upon him) said: "What are you laughing at?" They said: At the thinness of his shins. He (peace and blessings of Allah be upon him) said: "By the One in Whose hand is my soul! In the scale, these shins will be heavier than Mount Uhud."