Hadithcore
Riyad as-Salihin, 144

Ibn Mas'ud (May Allah be pleased with him) reported:

The Prophet (ﷺ) said, "Ruined are those who insist on hardship in matters of the Faith." He repeated this three times. <b>[Muslim]</b>

وعن ابن مسعود رضي الله عنه أن النبي صلى الله عليه وسلم قال‏:‏ ‏"‏هلك المتنطعون‏"‏ قالها ثلاثاً ‏"‏ ‏(‏‏(‏رواه مسلم‏)‏‏)‏

References1 variant
In-Book Reference
Introduction, Hadith 144
Sharh · explanationclick to expand
<b>Guidance from the Hadith:</b><br> 1) It instructs against following an extreme course when dealing with Sharia issues because of the harm and loss that such an approach would incur in this life and in the Hereafter.<br> 2) It recommends refraining from searching for fruitless minute issues, while instructing searching for what benefits the individual in this life and the Hereafter.<br> <br> <b>Words in the Hadith:</b><br> Extremists: refers to those who unnecessarily delve too deep and go beyond the required bounds.