Sahih Muslim 839c

Translation

a group stood with him (the Holy Prophet) (for prayer) and the other group stood In front of the enemy. Then those who were with (him) observed one rak'ah of prayer and they went back and the others came and they observed one rak'ah (with him). Then both the groups completed one rak'ah each. Ibn Umar said: When there is greater danger, then observe prayer even on the ride or with the help of gestures in a standing posture.

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Other narrations of this report

Sahih Ibn Khuzaymah 1542Sahih Ibn Khuzaymah 1543Musannaf Ibn Abi Shaybah 8371al-Sunan al-Kubra (al-Bayhaqi) 6136al-Sunan al-Kubra (al-Nasa'i) 1944

Narrators

1. 1
   ʿAbdullāh b. ʿUmar b. al-Khaṭṭāb

   One of the Companions who narrated most often, and one of the ʿAbādilah; he was among the people most strict in following the narrations (athar).d. 72 AH, or 73 AH, or 74 AH, also said: 75 AH
   عَبْدُ اللهِ بْنُ عُمَرَ بْنِ الْخَطَّابِأحد المكثرين من الصحابة والعبادلة ، وكان من أشد الناس اتباعا للأثر
   عن
2. 2
   Nāfiʿ mawlá Ibn ʿUmar

   trustworthy (thiqah), reliable (thabt), a well-known jurist (faqīh)d. 116 AH, or 117 AH, or 118 AH, or 119 AH, or 120 AH
   نَافِعٍثقة ثبت فقيه مشهور
   عن
3. 3
   Mūsá b. ʿUqbah

   trustworthy (thiqah), jurist (faqīh), an imām in the military expeditions (maghāzī)d. 141 AH, or 142 AH, also said: 135 AH, also said: before 145 AH
   مُوسَى بْنِ عُقْبَةَثقة فقيه ، إمام في المغازي
   عن
4. 4
   Sufyān al-Thawrī

   trustworthy (thiqah), a memorizer (ḥāfiẓ), a jurist (faqīh), devout (ʿābid), an imam and authority (ḥujjah)d. 159 AH or 160 AH or 161 AH or 162 AH
   سُفْيَانَثقة حافظ , فقيه عابد ، إمام حجة
   عن
5. 5
   Yaḥyá b. Ādam

   trustworthy (thiqah), a memorizer (ḥāfiẓ), virtuous (fāḍil)d. 203 AH
   يَحْيَى بْنُ آدَمَثقة حافظ فاضل
   حدثنا
6. 6
   Abū Bakr b. Abī Shaybah

   trustworthy (thiqah), a memorizer (ḥāfiẓ), author of works (ṣāḥib taṣānīf)d. 235 AH, or 234 AH
   أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَثقة حافظ ، صاحب تصانيف
   حدثنا
7. 7
   Muslim

   Trustworthy (thiqah), a retentive memorizer (ḥāfiẓ), an imam, an author of compilations, knowledgeable in jurisprudence (fiqh)d. Muḥammad b. Yaʿqūb said: 261 AH, Makkī b. ʿAbdān said: 259 AH
   مُسْلِمٌثقة حافظ ، إمام ، مصنف ، عالم بالفقه

Who each narrator was and how reliable, from hdith.com

Latin names and English verdicts with a dotted underline are machine translations, not reviewed.