Abu Hurayrah (may Allah be pleased with him) reported that the Prophet (may Allah's peace and blessings be upon him) said: "A person may utter a word pleasing to Allah, the Almighty, without considering it of any significance, and because of it Allah raises his ranks; and a person may utter a word displeasing to Allah, the Almighty, without considering it of any significance, and because of it he sinks down into Hellfire." Abu ‘Abdur-Rahmān Bilāl ibn al-Hārith al-Muzani (may Allah be pleased with him) reported that the Messenger of Allah (may Allah's peace and blessings be upon him) said: "A person may utter a word pleasing to Allah, the Almighty, and he does not think it will yield such a result, and because of it Allah writes for him His pleasure until the Day he will meet Him; and a person may utter a word displeasing to Allah, the Almighty, and he does not think it will yield such a result, and because of it Allah writes for him His displeasure until the Day he will meet Him." Sahih/Authentic with its two versions - Narrated by Ibn Majah - Narrated by Bukhari - Narrated by At-Termedhy - Narrated by Ahmad - Maalik
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