It is narrated from Sayyiduna Usama bin Sharik (may Allah be pleased with him) that I was present with the Prophet (peace and blessings of Allah be upon him) (on the occasion of Hajj) and the Bedouins came. Many people came from this side and many from that side. The people became silent and no one was speaking except them. They said: O Messenger of Allah! Is there any sin in doing such and such things? They mentioned many such matters to the people in which there was no harm in doing them. The Prophet (peace and blessings of Allah be upon him) said: "Allah the Exalted has removed hardship and difficulty. However, whoever unjustly eats someone’s flesh, he remains in hardship and is destroyed." They asked: O Messenger of Allah! Can we use medicine? The Prophet (peace and blessings of Allah be upon him) said: "O servants of Allah! Seek treatment, for indeed Allah, the Mighty and Majestic, has sent down a cure for every disease He has sent down, except for one disease." They said: O Messenger of Allah! What is that disease? The Prophet (peace and blessings of Allah be upon him) said: "Old age." They submitted: O Messenger of Allah! What is the best and most excellent thing given to man? The Prophet (peace and blessings of Allah be upon him) said: "Good character."