Ruined are the extremists
‘Abdullāh ibn Mas‘ūd (may Allah be pleased with him) reported: The Messenger of Allah (may Allah’s peace and blessings be upon him) said:
"Ruined are the extremists." He said it thrice.
«هلك المُتَنَطِّعُون» قالها ثلاثًا.
The Prophet (may Allah's peace and blessings be upon him) informs about the failure and loss of those who go to extremes - without guidance or knowledge - in their religious and worldly affairs and in their words and deeds, exceeding the Shariah-the prescribed limit outlined by the Prophet (may Allah's peace and blessings be upon him).
....:
It prohibits extremism and immoderation in all matters and encourages its avoidance in everything, particularly in worship and the extolling of righteous people.
Seeking what is more perfect in worship and in other things is commendable, and it should be achieved by adhering to Shariah.
It is recommended to stress important things, as the Prophet (may Allah's peace and blessings be upon him) repeated his statement three times.
It shows the tolerance and ease of Islam.
Sahīh Muslim (4/ 2055) (2670).
More (4)
الجديد في شرح كتاب التوحيد.
للقرعاوي (ص180).
الملخص في شرح كتاب التوحيد.
لصالح الفوزان (ص167).