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.
ahmad-zuhd:1114ʿAbdullāh from my father > al-Naḍr b. Shumayl > Sulaymān al-Aʿmash > Yaḥyá b. And Thhāb

[Machine] That Ibn Zubayr used to prostrate (in prayer) until birds would settle on his back, as if he was a part of the wall.  

الزهد لأحمد:١١١٤حَدَّثَنَا عَبْدُ اللَّهِ حَدَّثَنَا أَبِي حَدَّثَنَا النَّضْرُ بْنُ شُمَيْلٍ حَدَّثَنَا سُلَيْمَانُ الْأَعْمَشُ عَنْ يَحْيَى بْنِ وَثَّابٍ

أَنَّ ابْنَ الزُّبَيْرِ كَانَ يَسْجُدُ حَتَّى تَنْزِلَ الْعَصَافِيرُ عَلَى ظَهْرِهِ لَا تَحْسَبُهُ إِلَّا جِذْمَ حَائِطٍ