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.
bayhaqi:3249Abū Bakr b. al-Ḥasan And ʾAbū Zakariyyā b. Abū Isḥāq > Abū al-ʿAbbās Muḥammad b. Yaʿqūb > Baḥr b. Naṣr > Ibn Wahb > Anas b. ʿIyāḍ > Muḥammad b. Abū Yaḥyá al-Aslamī > Abū al-ʿAlāʾ a freed slave of al-Aslamiyyīn > Raʾayt

[Machine] I saw Ali wearing a waist-wrap above the navel, and this does not contradict the statement of those who claim that the navel is not considered an 'awrah (private area). Because whoever claims that has tied the waist-wrap above the navel in order to cover all the 'awrah with a covering, and with Allah is the success.  

البيهقي:٣٢٤٩أَخْبَرَنَا أَبُو بَكْرِ بْنُ الْحَسَنِ وَأَبُو زَكَرِيَّا بْنُ أَبِي إِسْحَاقَ قَالَا ثنا أَبُو الْعَبَّاسِ مُحَمَّدُ بْنُ يَعْقُوبَ ثنا بَحْرُ بْنُ نَصْرٍ ثنا ابْنُ وَهْبٍ ثنا أَنَسُ بْنُ عِيَاضٍ عَنْ مُحَمَّدِ بْنِ أَبِي يَحْيَى الْأَسْلَمِيِّ عَنْ أَبِي الْعَلَاءِ مَوْلَى الْأَسْلَمِيِّينَ قَالَ

رَأَيْتُ عَلِيًّا ؓ يَتَّزِرُ فَوْقَ السُّرَّةِ وَهَذَا لَا يُخَالِفُ قَوْلَ مَنْ زَعَمَ أَنَّ السُّرَّةَ لَيْسَتْ بِعَوْرَةٍ؛ لِأَنَّ مَنْ زَعَمَ ذَلِكَ عَقَدَ الْإِزَارَ فَوْقَ السُّرَّةِ لِيَسْتَوْعِبَ جَمِيعَ الْعَوْرَةِ بِالسِّتْرِ وَبِاللهِ التَّوْفِيقُ