Mustadrak al-Hakim 1564
Aḥmad b. Ḥāzim al-Ghifārī > Qabīṣah b. ʿUqbah > Sufyān > Abū Bakr b. Ḥātim al-Marwazī > Muḥammad b. Ghālib > Abū Ḥudhayfah > Sufyān > ʿĀṣim al-Aḥwal > Abū Qilābah > Abū al-Ashʿath al-Ṣanʿānī > Shaddād b. Aws
The messenger of Allah, peace be upon him, passed by Ma'qil ibn Yasir in the morning of the eighteenth day of Ramadan while he was performing ihtikaam (a form of voluntary fasting where one continues fasting from the previous day without breaking it). The messenger of Allah, peace be upon him, said, "The one who is performing ihtikaam has broken his fast, as well as the one who has been restrained."
فَأَخْبَرَنَاهُ مُحَمَّدُ بْنُ عَلِيٍّ الشَّيْبَانِيُّ بِالْكُوفَةِ ثنا أَحْمَدُ بْنُ حَازِمٍ الْغِفَارِيُّ ثنا قَبِيصَةُ بْنُ عُقْبَةَ ثنا سُفْيَانُ وَأَخْبَرَنِي أَبُو بَكْرِ بْنُ حَاتِمٍ الْمَرْوَزِيُّ ثنا مُحَمَّدُ بْنُ غَالِبٍ ثنا أَبُو حُذَيْفَةَ ثنا سُفْيَانُ عَنْ عَاصِمٍ الْأَحْوَلِ عَنْ أَبِي قِلَابَةَ عَنْ أَبِي الْأَشْعَثِ الصَّنْعَانِيِّ عَنْ شَدَّادِ بْنِ أَوْسٍ قَالَ
مَرَّ رَسُولُ اللَّهِ ﷺ بِمَعْقِلِ بْنِ يَسَارٍ صَبِيحَةَ ثَمَانِيَ عَشْرَةَ مِنْ رَمَضَانَ وَهُوَ يَحْتَجِمُ فَقَالَ «أَفْطَرَ الْحَاجِمُ وَالْمَحْجُومُ»