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.
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

ذِكْرُ الْخَبَرِ الدَّالِّ عَلَى أَنَّ تَارِكَ الصَّلَاةِ حَتَّى خَرَجَ وَقْتُهَا مُتَعَمِّدًا لَا يَكْفُرُ بِهِ كُفْرًا يُخْرِجُهُ عَنَ الْمِلَّةِ

ibnhibban:1455 – ʿAbdullāh b. Muḥammad al-Azdī > Isḥāq b. Ibrāhīm > ʿAbd al-Razzāq > Maʿmar > Ayyūb And Mūsá b. ʿUqbah > Nāfiʿ

[Machine] This is how the Messenger of Allah ﷺ used to act when he was surprised by a journey or an expedient matter.  

ابن حبّان:١٤٥٥ – أَخْبَرَنَا عَبْدُ اللَّهِ بْنُ مُحَمَّدٍ الْأَزْدِيُّ حَدَّثَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ أَخْبَرَنَا عَبْدُ الرَّزَّاقِ أَخْبَرَنَا مَعْمَرٌ عَنْ أَيُّوبَ وَمُوسَى بْنِ عُقْبَةَ عَنْ نَافِعٍ قَالَ أَخْبَرَ ابْنُ عُمَرَ بِوَجَعِ امْرَأَتِهِ فِي السَّفَرِ فَأَخَّرَ الْمَغْرِبَ فَقِيلَ الصَّلَاةَ فَسَكَتَ وَأَخَّرَهَا بَعْدَ ذَهَابِ الشَّفَقِ حَتَّى ذَهَبَ هَوِيٌّ مِنَ اللَّيْلِ ثُمَّ نَزَلَ فَصَلَّى الْمَغْرِبَ وَالْعِشَاءَ ثُمَّ قَالَ

«هَكَذَا كَانَ رَسُولُ اللَّهِ ﷺ يَفْعَلُ إِذَا جَدَّ بِهِ السَّيْرُ أَوْ حَزَبَهُ أَمَرٌ»  

See similar narrations below:

Collected by Nasāʾī
nasai:599 – Isḥāq b. Ibrāhīm > ʿAbd al-Razzāq > Maʿmar > Mūsá b. ʿUqbah > Nāfiʿ > Ibn ʿUmar

"If the Messenger of Allah ﷺ was in a hurry to travel, or some emergency arose, he would combine Maghrib and 'Isha'."  

النسائي:٥٩٩ – أَخْبَرَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ قَالَ أَنْبَأَنَا عَبْدُ الرَّزَّاقِ قَالَ حَدَّثَنَا مَعْمَرٌ عَنْ مُوسَى بْنِ عُقْبَةَ عَنْ نَافِعٍ عَنِ ابْنِ عُمَرَ قَالَ

كَانَ رَسُولُ اللَّهِ ﷺ إِذَا جَدَّ بِهِ السَّيْرُ أَوْ حَزَبَهُ أَمْرٌ جَمَعَ بَيْنَ الْمَغْرِبِ وَالْعِشَاءِ