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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
darimi:1594 – Muḥammad b. Yūsuf > Sufyān > al-Rabīʿ > Ibn Ṣabīḥ al-Baṣrī

[Machine] I saw Al-Hassan praying two units of prayer while the imam was delivering a sermon.  

الدارمي:١٥٩٤ – أَخْبَرَنَا مُحَمَّدُ بْنُ يُوسُفَ حَدَّثَنَا سُفْيَانُ عَنْ الرَّبِيعِ هُوَ ابْنُ صَبِيحٍ الْبَصْرِيُّ قَالَ

رَأَيْتُ الْحَسَنَ «يُصَلِّي رَكْعَتَيْنِ وَالْإِمَامُ يَخْطُبُ»