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
abudawud:800 – al-Ḥasan b. ʿAlī > ʿAbd al-Razzāq > Maʿmar > Yaḥyá > ʿAbdullāh b. Abū Qatādah from his father > Faẓanannā > Yurīd Bidhalik

We thought that by this (prolonging the first rak’ah). He (the prophet) meant that the people might join the first rak’ah.  

أبو داود:٨٠٠ – حَدَّثَنَا الْحَسَنُ بْنُ عَلِيٍّ حَدَّثَنَا عَبْدُ الرَّزَّاقِ أَخْبَرَنَا مَعْمَرٌ عَنْ يَحْيَى عَنْ عَبْدِ اللَّهِ بْنِ أَبِي قَتَادَةَ عَنْ أَبِيهِ قَالَ فَظَنَنَّا أَنَّهُ يُرِيدُ بِذَلِكَ

أَنْ يُدْرِكَ النَّاسُ الرَّكْعَةَ الأُولَى