Ibn Shu'ayb narrates from Abu Umayyah al-Sha'bani (may Allah have mercy on him) that he said: I came to Abu Tha'labah al-Khushani (may Allah be pleased with him) and said: What do you take this verse to mean? He said: Which verse? I said: The saying of Allah Almighty: "O you who believe, hold fast to your own selves; whoever has gone astray cannot harm you when you are guided." [Surah al-Ma'idah: 105] He said: By Allah, I asked one well-informed about it; I asked the Messenger of Allah (peace and blessings be upon him) about it, and he (peace and blessings be upon him) said: "Rather, enjoin one another to good and forbid one another from evil. When you see stinginess that is obeyed, desire that is followed, the world being preferred, and every man pleased with his own opinion, and you see a matter that is beyond your power, then at that time hold fast to yourself and leave the affairs of the common people. For after this come days of patience; patience in those days is like holding a burning coal in the hand. The one who does good deeds in those days will have a reward equal to the reward of fifty men."
(b) These are the words of Ibn Shu'ayb's narration. Ibn al-Mubarak added in his narration: Someone else added for me: They said: O Messenger of Allah (peace and blessings be upon him), the reward of fifty of them? He (peace and blessings be upon him) said: "The reward of fifty of you."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب آداب القاضي / 20193