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.
abudawud:916al-Rabīʿ b. Nāfiʿ > Muʿāwiyah / Ibn Salāam > Zayd > Abū Salāam > al-Salūlī > Abū Kabshah > Sahl Ibn al-Ḥanẓaliyyah > Thuwwib

The iqamah for the morning prayer was pronounced and the Messenger of Allah ﷺ began to offer prayer while he was looking at the mountain-pass. (AbuDawud elaborated that the Prophet had sent a horseman to the mountain-pass at night in order to keep watch.)  

أبو داود:٩١٦حَدَّثَنَا الرَّبِيعُ بْنُ نَافِعٍ حَدَّثَنَا مُعَاوِيَةُ يَعْنِي ابْنَ سَلاَّمٍ عَنْ زَيْدٍ أَنَّهُ سَمِعَ أَبَا سَلاَّمٍ قَالَ حَدَّثَنِي السَّلُولِيُّ هُوَ أَبُو كَبْشَةَ عَنْ سَهْلِ ابْنِ الْحَنْظَلِيَّةِ قَالَ

ثُوِّبَ بِالصَّلاَةِ يَعْنِي صَلاَةَ الصُّبْحِ فَجَعَلَ رَسُولُ اللَّهِ ﷺ يُصَلِّي وَهُوَ يَلْتَفِتُ إِلَى الشِّعْبِ  

قَالَ أَبُو دَاوُدَ وَكَانَ أَرْسَلَ فَارِسًا إِلَى الشِّعْبِ مِنَ اللَّيْلِ يَحْرُسُ

See similar narrations below:

Collected by Bayhaqī
bayhaqi:3868Abū ʿAlī al-Rūdhbārī > Abū Bakr b. Dāsah > Abū Dāwud > al-Rabīʿ b. Nāfiʿ > Muʿāwiyah b. Sallām > Zayd > Abū Sallām > al-Salūlī > Sahl Ibn al-Ḥanẓaliyyah

[Machine] The Prophet Muhammad ﷺ performed the prayer, meaning the Fajr prayer, and he prayed while looking towards the people. Abu Dawud said: meaning he sent someone to guard the people during the night.  

البيهقي:٣٨٦٨وَأَخْبَرَنَا أَبُو عَلِيٍّ الرُّوذْبَارِيُّ أنبأ أَبُو بَكْرِ بْنُ دَاسَةَ ثنا أَبُو دَاوُدَ ثنا الرَّبِيعُ بْنُ نَافِعٍ ثنا مُعَاوِيَةُ بْنُ سَلَّامٍ عَنْ زَيْدٍ أَنَّهُ سَمِعَ أَبَا سَلَّامٍ قَالَ حَدَّثَنِي السَّلُولِيُّ عَنْ سَهْلِ ابْنِ الْحَنْظَلِيَّةِ قَالَ

ثُوِّبَ بِالصَّلَاةِ يَعْنِي صَلَاةَ الصُّبْحِ فَجَعَلَ رَسُولُ اللهِ ﷺ يُصَلِّي وَهُوَ يَلْتَفِتُ إِلَى الشِّعْبِ قَالَ أَبُو دَاوُدَ يَعْنِي وَكَانَ أَرْسَلَ فَارِسًا إِلَى الشِّعْبِ مِنَ اللَّيْلِ يَحْرُسُ