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ibnmajah:1144 – Aḥmad b. ʿAbdah > Ḥammād b. Zayd > Anas b. Sīrīn > Ibn ʿUmar

“The Messenger of Allah ﷺ used to pray two Rak’ah before the morning (prayer), as if the Adhan were in his ears. (i.e., he would pray them briefly).  

ابن ماجة:١١٤٤ – حَدَّثَنَا أَحْمَدُ بْنُ عَبْدَةَ أَنْبَأَنَا حَمَّادُ بْنُ زَيْدٍ عَنْ أَنَسِ بْنِ سِيرِينَ عَنِ ابْنِ عُمَرَ قَالَ

كَانَ رَسُولُ اللَّهِ ﷺ يُصَلِّي الرَّكْعَتَيْنِ قَبْلَ الْغَدَاةِ كَأَنَّ الأَذَانَ بِأُذُنَيْهِ  

See similar narrations below:

Collected by Aḥmad
ahmad:5609 – Abū Kāmil > Ḥammād > Anas b. Sīrīn > Ibn ʿUmar

[Machine] The Prophet ﷺ used to pray two units (rak'ahs) before the Fajr prayer as if the Adhan was being called in his ears.  

أحمد:٥٦٠٩ – حَدَّثَنَا أَبُو كَامِلٍ أَخْبَرَنَا حَمَّادٌ حَدَّثَنَا أَنَسُ بْنُ سِيرِينَ عَنِ ابْنِ عُمَرَ

أَنَّ النَّبِيَّ ﷺ كَانَ يُصَلِّي الرَّكْعَتَيْنِ قَبْلَ صَلَاةِ الْفَجْرِ كَأَنَّ الْأَذَانَ فِي أُذُنَيْهِ  

ahmad:6090 – Yūnus > Ḥammād / Ibn Salamah > Anas b. Sīrīn > Ibn ʿUmar

[Machine] That the Messenger of Allahﷺ used to pray two Rak'ahs before the Fajr prayer as if the Adhan was in his ears.  

أحمد:٦٠٩٠ – حَدَّثَنَا يُونُسُ حَدَّثَنَا حَمَّادٌ يَعْنِي ابْنَ سَلَمَةَ عَنْ أَنَسِ بْنِ سِيرِينَ عَنِ ابْنِ عُمَرَ

أَنَّ رَسُولَ اللهِ ﷺ كَانَ يُصَلِّي الرَّكْعَتَيْنِ قَبْلَ صَلَاةِ الْفَجْرِ كَأَنَّ الْأَذَانَ فِي أُذُنَيْهِ