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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
bayhaqi:16585 – Abū al-Ḥusayn b. al-Faḍl al-Qaṭṭān > ʿAbdullāh b. Jaʿfar > Yaʿqūb b. Sufyān > Aḥmad b. Yūnus > Abū Maʿshar > Muḥammad b. Qays

[Machine] The Messenger of Allah ﷺ complained for thirteen days. Whenever he felt light, he would pray, and whenever he felt heavy, he prayed. Abu Bakr also prayed.  

البيهقي:١٦٥٨٥ – أَخْبَرَنَا أَبُو الْحُسَيْنِ بْنُ الْفَضْلِ الْقَطَّانُ أَنْبَأَ عَبْدُ اللهِ بْنُ جَعْفَرٍ ثَنَا يَعْقُوبُ بْنُ سُفْيَانَ ثَنَا أَحْمَدُ بْنُ يُونُسَ ثَنَا أَبُو مَعْشَرٍ عَنْ مُحَمَّدِ بْنِ قَيْسٍ قَالَ

اشْتَكَى رَسُولُ اللهِ ﷺ ثَلَاثَةَ عَشَرَ يَوْمًا فَكَانَ إِذَا وَجَدَ خِفَّةً صَلَّى وَإِذَا ثَقُلَ صَلَّى أَبُو بَكْرٍ ؓ