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.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
quran:8:21 –

And do not be like those who say, "We have heard," while they do not hear.  

And do not be as those who say, ‘We hear,’ and they hear not, in such a way as to reflect and heed admonition — these are either the hypocrites or the idolaters.
القرآن:٨:٢١ –

وَلَا تَكُونُوا كَالَّذِينَ قَالُوا سَمِعْنَا وَهُمْ لَا يَسْمَعُونَ  

{ولا تكونوا كالذين قالوا سمعنا وهم لا يسمعون} سماع تدبر واتعاظ وهم المنافقون أو المشركون.