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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
nasai:454 – Muḥammad b. Hāshim al-Baʿlabakkī > al-Walīd > Abū ʿAmr / al-Awzāʿī

"Urwah told me that 'Aishah said: 'Allah enjoined the salah upon the Messenger of Allah ﷺ, and the first thing that He enjoined was two Rak'ahs at a time, then it was made complete four Rak'ahs while in the state of residence but the prayer when traveling remained two Rak'ahs, as it was first enjoined.'"  

النسائي:٤٥٤ – أَخْبَرَنَا مُحَمَّدُ بْنُ هَاشِمٍ الْبَعْلَبَكِّيُّ قَالَ أَنْبَأَنَا الْوَلِيدُ قَالَ أَخْبَرَنِي أَبُو عَمْرٍو يَعْنِي الأَوْزَاعِيَّ أَنَّهُ سَأَلَ الزُّهْرِيَّ

عَنْ صَلاَةِ رَسُولِ اللَّهِ ﷺ بِمَكَّةَ قَبْلَ الْهِجْرَةِ إِلَى الْمَدِينَةِ قَالَ أَخْبَرَنِي عُرْوَةُ عَنْ عَائِشَةَ قَالَتْ فَرَضَ اللَّهُ ﷻ الصَّلاَةَ عَلَى رَسُولِهِ ﷺ أَوَّلَ مَا فَرَضَهَا رَكْعَتَيْنِ رَكْعَتَيْنِ ثُمَّ أُتِمَّتْ فِي الْحَضَرِ أَرْبَعًا وَأُقِرَّتْ صَلاَةُ السَّفَرِ عَلَى الْفَرِيضَةِ الأُولَى  

See similar narrations below:

Collected by Bayhaqī, Suyūṭī
bayhaqi:1697 – Isḥāq b. Muḥammad b. Yūsuf b. Yaʿqūb al-Sūsī > Abū al-ʿAbbās al-Aṣam > Muḥammad b. ʿAwf > Abū al-Mughīrah > al-Awzāʿī > Suʾil

[Machine] Al-Zuhri: How was the prayer of the Prophet ﷺ in Mecca before he migrated to Medina? He said: Urwah ibn Az-Zubair informed me that Aisha said, "Allah first ordained the prayer as two units, then completed it in Al-Hudaybiyah. The prayer of travel was established after the first obligation, and it was narrated from 'Amir Ash-Sha'bi from Masruq from Aisha."  

البيهقي:١٦٩٧ – وَقَدْ أَخْبَرَنَا إِسْحَاقُ بْنُ مُحَمَّدِ بْنِ يُوسُفَ بْنِ يَعْقُوبَ السُّوسِيُّ ثنا أَبُو الْعَبَّاسِ الْأَصَمُّ ثنا مُحَمَّدُ بْنُ عَوْفٍ ثنا أَبُو الْمُغِيرَةِ ثنا الْأَوْزَاعِيُّ قَالَ سُئِلَ

الزُّهْرِيُّ كَيْفَ كَانَتْ صَلَاةُ النَّبِيِّ ﷺ بِمَكَّةَ قَبْلَ أَنْ يُهَاجِرَ إِلَى الْمَدِينَةِ؟ فَقَالَ أَخْبَرَنِي عُرْوَةُ بْنُ الزُّبَيْرِ عَنْ عَائِشَةَ قَالَتْ فَرَضَ اللهُ الصَّلَاةَ أَوَّلَ مَا فَرَضَهَا رَكْعَتَيْنِ ثُمَّ أَتَمَّهَا فِي الْحَضَرِ وَأُقِرَّتْ صَلَاةُ السَّفَرِ عَلَى الْفَرِيضَةِ الْأُولَى وَرُوِيَ عَنْ عَامِرٍ الشَّعْبِيِّ عَنْ مَسْرُوقٍ عَنْ عَائِشَةَ ؓ  

suyuti:673-111b – ʿĀʾishah > Faraḍ
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السيوطي:٦٧٣-١١١b –

"عَنْ عَائِشَةَ قَالَتْ: فَرَضَ اللهُ - تَعَالَى- آيَةَ الصَّلَاةِ أَوَّلَ مَا فَرَضَهَا رَكْعَتَيْنِ ثُمَ أَتَمَّهَا لِلْحَاضِرِ، وَأُقِرَّتْ صَلَاةُ السَّفَرِ عَلَى الفَرِيضَةِ الأُولَى".  

[عب] عبد الرازق [ش] ابن أبى شيبة