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.
bayhaqi:2322ʿĀṣim

[Machine] "And he said in the hadith, 'Then I came to them in the winter, and I saw them raising their hands in prayer.' Abu Abdullah Al-Hafiz informed us, Abu Al-Abbas narrated to us, Al-Rabi' narrated to us, Al-Shafi'i narrated to us, and Sufyan mentioned him."  

البيهقي:٢٣٢٢وَرَوَاهُ سُفْيَانُ بْنُ عُيَيْنَةَ عَنْ عَاصِمٍ

وَقَالَ فِي الْحَدِيثِ ثُمَّ أَتَيْتُهُمْ فِي الشِّتَاءِ فَرَأَيْتُهُمْ يَرْفَعُونَ أَيْدِيَهُمْ فِي الْبَرَانِسِ أَخْبَرَنَاهُ أَبُو عَبْدِ اللهِ الْحَافِظُ أنبأ أَبُو الْعَبَّاسِ أنبأ الرَّبِيعُ أنبأ الشَّافِعِيُّ أنبأ سُفْيَانُ فَذَكَرَهُ