Hadithcore
Riyad as-Salihin, 1521

Abu Sa'id Al-Khudri (May Allah be pleased with him) said:

The Prophet (ﷺ) said, "When the son of Adam gets up in the morning, all the limbs humble themselves before the tongue and say: 'Fear Allah for our sake because we are with you: (i.e., we will be rewarded or punished as a result of what you do) if you are straight, we will be straight; and if you are crooked, we will become crooked."' <b>[At- Tirmidhi]</b>.

وعن أبي سعيد الخدري رضي الله عنه عن النبي صلى الله عليه وسلم قال‏:‏ “إذا أصبح ابن آدم، فإن الأعضاء كلها تكفر اللسان، تقول‏:‏ اتقِ الله فينا، فإنما نحن بك‏:‏ فإن استقمت استقمنا وإن اعوججت اعوججنا”‏.‏ ‏(‏‏(‏رواه الترمذي‏)‏‏)‏‏.‏ ‏ '‏معني “تكفر اللسان” أي تذل وتخضع ل‏ه.‏

References1 variant
In-Book Reference
Book 17, Hadith 11
Sharh · explanationclick to expand
<b>Guidance from the Hadith:</b><br> 1) A person is hidden under his tongue (i.e. his true state is concealed by his silence), so if the tongue slips, all the organs are affected as its slip exposes them to Allah’s displeasure and punishment.<br> 2) A slave has to avoid all the ways that lead him to destruction and incurring Allah Almighty’s displeasure by fearing Him in secret and public.
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