Musannaf Ibn Abi Shaybah 27752 — The Prophet (peace and blessings be)

Sayyiduna Jundub bin Sufyan (may Allah be pleased with him) said that the Prophet (peace and blessings be upon him) was in a cave when his finger (peace and blessings be upon him) was injured, and he (peace and blessings be upon him) said: "You are nothing but a finger from which blood is flowing, and what has struck you was in the path of Allah."