Jami' al-Saghir / Jam' al-Jawami' (al-Suyuti) 2-1564b
"عَنِ الأَسْوَدِ قالَ: صَلَّيْتُ خَلْفَ عمرَ بنِ الخطَّابِ فِى السَّفَرِ والْحَضَرِ وَكَانَ يَقْنُتُ فِى الرَّكْعَةِ الثَّانِيَةِ مِنْ صَلَاةِ الْفَجْرِ، وَلَا يَقْنُتُ فِى سَائِرِ صَلَاتِهِ".
Notes
[ق] البيهقى في السنن
machine translation[Q] Al-Bayhaqī in al-Sunan
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