Hadithcore
Riyad as-Salihin, 87

Abu Hurairah (May Allah be pleased with him) reported:

Messenger of Allah (ﷺ) said, "Be prompt in doing good deeds (before you are overtaken) by turbulence which would be like a part of the dark night. A man would be a believer in the morning and turn to disbelief in the evening, or he would be a believer in the evening and turn disbeliever in the morning, and would sell his Faith for worldly goods." <b>[Muslim]</b>.

فالأول‏:‏ عن أبي هريرة رضي الله عنه أن رسول الله صلى الله عليه وسلم قال‏:‏ ‏

‏ بادروا بالأعمال فتناً كقطع الليل المظلم يصبح الرجل مؤمنا ويمسي كافراً ويمسي مؤمنا ويصبح كافراً، يبيع دينه بعرض من الدنيا‏

‏ ‏(‏‏(‏رواه مسلم‏)‏‏)‏‏.‏

References1 variant
In-Book Reference
Introduction, Hadith 87
Sharh · explanationclick to expand
<b>Guidance from the Hadith:</b><br> 1) It shows the obligation of holding firm onto religion and hastening to do good deeds before any hindrances or obstacles stand in the way of doing them unexpectedly.<br> 2) It warns against falling into tribulations, because they plant doubt in one’s religion and weakness in faith.<br> 3) It urges adherence to knowledge and to action based on that knowledge, because they protect the individual at the time of tribulations.
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