Sunan Ibn Majah, Chapter: The Chapters on Tribulations

said that a man passed by him, who held a prominent position, and 'Alqamah said to him: said that a man passed by him, who held a prominent position, and 'Alqamah said to him:"You have kinship and rights, and I see you entering upon these rulers and speaking to them as Allah wills you should speak. But i heard Bilal bin Harith Al-Muzani, the Companion of the Messenger of Allah (saw), say that the Messenger of Allah (saw) said: 'One of you may speak a word that pleases Allah, and not know how far it reaches, but Allah will record for him as pleasure, until the Day of Resurrection due to that word. And one of you may speak a word that angers Allah, and not know how far it reaches, but Allah will record against him his anger, until the Day he meets Him due to that word." 'Alqamah said: "So look, woe to you, at what you say and what you speak about, for there is something that I wanted to say but I refrained because of what I heard from Bilal bin Harith."