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.
tirmidhi:2129bal-Zuhrī > ʿUrwah > ʿĀʾishah And Zād Fīh Alam Tara > Mujazziz Mar > Zayd b. Ḥārithah Waʾusāmah b. Zayd Qad Ghaṭṭayā Ruʾūsahumā Wabadat Aqdāmuhumā > In Hadhih al-Aqdām Baʿḍuhā from Baʿḍ Wahakadhā > Saʿīd b. ʿAbd al-Raḥman > Sufyān b. ʿUyaynah Hadhā al-Ḥadīth > al-Zuhrī > ʿUrwah

"Dont you see that the Mujazziz passed by Zaid bin Harithah and Usamah bin Zaid while their heads were covered, and their feet were exposed, and he said: 'These feet belong to each other.'" This is how Sa'eed bin Abdur-Rahman - and more than one narrator - narrated this Hadith from Sufyan bin 'Uyanah, from Az-Zuhri, from 'Urwah, from A'ishah. And this Hadith is Hasan Sahih. Some of the people of knowledge used this Hadith to support the case of Qa'if.  

الترمذي:٢١٢٩bوَقَدْ رَوَى ابْنُ عُيَيْنَةَ هَذَا الْحَدِيثَ عَنِ الزُّهْرِيِّ عَنْ عُرْوَةَ

عَنْ عَائِشَةَ وَزَادَ فِيهِ أَلَمْ تَرَىْ أَنَّ مُجَزِّزًا مَرَّ عَلَى زَيْدِ بْنِ حَارِثَةَ وَأُسَامَةَ بْنِ زَيْدٍ قَدْ غَطَّيَا رُءُوسَهُمَا وَبَدَتْ أَقْدَامُهُمَا فَقَالَ إِنَّ هَذِهِ الأَقْدَامَ بَعْضُهَا مِنْ بَعْضٍ وَهَكَذَا حَدَّثَنَا سَعِيدُ بْنُ عَبْدِ الرَّحْمَنِ وَغَيْرُ وَاحِدٍ عَنْ سُفْيَانَ بْنِ عُيَيْنَةَ هَذَا الْحَدِيثَ عَنِ الزُّهْرِيِّ عَنْ عُرْوَةَ عَنْ عَائِشَةَ وَهَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ وَقَدِ احْتَجَّ بَعْضُ أَهْلِ الْعِلْمِ بِهَذَا الْحَدِيثِ فِي إِقَامَةِ أَمْرِ الْقَافَةِ