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.
muslim:411dIbn Abū ʿUmar > Maʿn b. ʿĪsá > Mālik b. Anas > al-Zuhrī > Anas

The Messenger of Allah ﷺ rode a horse and fell down from it and his right side was grazed, and the rest of the hadith is the same, and (these words) are found in it:" When he (the Imam) says prayer in an erect posture, you should also say it in an erect posture."  

مسلم:٤١١dحَدَّثَنَا ابْنُ أَبِي عُمَرَ حَدَّثَنَا مَعْنُ بْنُ عِيسَى عَنْ مَالِكِ بْنِ أَنَسٍ عَنِ الزُّهْرِيِّ عَنْ أَنَسٍ

أَنَّ رَسُولَ اللَّهِ ﷺ رَكِبَ فَرَسًا فَصُرِعَ عَنْهُ فَجُحِشَ شِقُّهُ الأَيْمَنُ بِنَحْوِ حَدِيثِهِمْ وَفِيهِ إِذَا صَلَّى قَائِمًا فَصَلُّوا قِيَامًا  


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muslim:411cḤarmalah b. Yaḥyá > Ibn Wahb > Yūnus > Ibn Shihāb > Anas b. Mālik

The Messenger of Allah ﷺ fell down from a horse and his right side was grazed, and the rest of the hadith is the same with the addition of these words:" When he (the Imam) says prayer standing, you should also do so."  

مسلم:٤١١cحَدَّثَنِي حَرْمَلَةُ بْنُ يَحْيَى أَخْبَرَنَا ابْنُ وَهْبٍ أَخْبَرَنِي يُونُسُ عَنِ ابْنِ شِهَابٍ أَخْبَرَنِي أَنَسُ بْنُ مَالِكٍ

أَنَّ رَسُولَ اللَّهِ ﷺ صُرِعَ عَنْ فَرَسٍ فَجُحِشَ شِقُّهُ الأَيْمَنُ بِنَحْوِ حَدِيثِهِمَا وَزَادَ فَإِذَا صَلَّى قَائِمًا فَصَلُّوا قِيَامًا