Riyad as-SalihinChapter 17Hadith 976
Full Sharh — Riyad as-Salihin 976
وعن ابن عمر رضي الله عنهما قال : "نهينا عن التكلف". ((رواه البخاري)).
English Translation
'Umar (May Allah be pleased with him) said:: We have been forbidden to go into excess..
Source
Riyad as-Salihin(رياض الصالحين)
The Book of the Prohibited actions
Hadith Number
976