It is narrated from Sayyiduna Usamah bin Sharik (may Allah be pleased with him) that we were sitting in the company of the Messenger of Allah (peace and blessings be upon him) with such utmost reverence and composure that it was as if birds were perched on our heads, and none of us was speaking. Meanwhile, some Bedouins came to him (peace and blessings be upon him) and began asking about various matters: "O Messenger of Allah! Tell us about such-and-such; give us a ruling about such-and-such." So he (peace and blessings be upon him) said: "O people! Allah Almighty has lifted hardship, except for the one who unjustly attacks the honour of his brother; that is the one who has fallen into sin and is ruined." They said: "O Messenger of Allah! Should we use medicine (in illness)?" He (peace and blessings be upon him) said: "Yes. Indeed, Allah, the Mighty and Majestic, has not sent down any disease without sending down a cure for it, except for one disease." They said: "O Messenger of Allah! What is it?" He (peace and blessings be upon him) said: "Old age." They asked: "Who among His servants is most beloved to Allah?" He (peace and blessings be upon him) said: "Those who are best in character."