- "Sin is what troubles the hearts, and there is no gaze except that Satan has a share in it." Mawqūf [attributed to a Companion, not the Prophet]. It was recorded by al-Bayhaqī in "Shuʿab al-Īmān" (2/126/2) through the route of Saʿīd ibn Manṣūr: Sufyān narrated to us from Manṣūr from Muḥammad ibn ʿAbd al-Raḥmān ibn Yazīd from his father, who said: ʿAbd Allāh said: The Messenger of Allāh (ṣallá Allāhu ʿalayhi wa-sallam) said: and he mentioned it. I say: This isnād is authentic; all its narrators are trustworthy, the narrators of al-Bukhārī and Muslim, except for Muḥammad ibn ʿAbd al-Raḥmān ibn Yazīd - who is al-Nakhaʿī al-Kūfī - and he is unanimously trustworthy, but it was criticized for being mawqūf. Al-Mundhirī said (3/65): "It was narrated by al-Bayhaqī and others, and I do not know of any criticism against its narrators, but it was said: its correct form is mawqūf." Al-Ḥāfiẓ al-ʿIrāqī said in "Takhrīj al-Iḥyāʾ" (1/32): after attributing it to al-Bayhaqī from the ḥadīth of Ibn Masʿūd: "And al-ʿAdnī narrated it in his 'Musnad' as mawqūf on him." I say: Al-Ṭabarānī also narrated it in "al-Muʿjam al-Kabīr" (no. 8748): Muḥammad ibn al-Naḍr al-Azdī narrated to us: Muʿāwiyah ibn ʿAmr informed us, Zāʾidah informed us from Manṣūr with it as mawqūf, and its wording: "Indeed, sin troubles the hearts, so if something troubles the heart of any of you, let him leave it." Then he narrated it with the same isnād as mawqūf, except that he placed al-Aʿmash in place of Zāʾidah, and its wording is the wording of the translation, except he rearranged it. I say: This isnād is also authentic, for Muḥammad ibn al-Naḍr al-Azdī is Muḥammad ibn Aḥmad ibn al-Naḍr al-Azdī, and he was deemed trustworthy by ʿAbd Allāh ibn Aḥmad and Muḥammad ibn ʿAbdūs as in his biography from "al-Tārīkh" (1/364), and those above him are trustworthy narrators of al-Bukhārī and Muslim