Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
quran:26:226

And that they say what they do not do? -  

and that they say, we do, what they do not do?, in other words, that they lie.
القرآن:٢٦:٢٢٦

وَأَنَّهُمْ يَقُولُونَ مَا لَا يَفْعَلُونَ  

{وأنهم يقولون} فعلنا {مالا يفعلون} يكذبون.