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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
muslim:703d – Ḥarmalah b. Yaḥyá > Ibn Wahb > Yūnus > Ibn Shihāb > Sālim b. ʿAbdullāh from his father

I saw the Messenger of Allah ﷺ delaying the sunset prayer till he would combine it with the 'Isha' when he hastened to set out on a journey.  

مسلم:٧٠٣d – وَحَدَّثَنِي حَرْمَلَةُ بْنُ يَحْيَى أَخْبَرَنَا ابْنُ وَهْبٍ أَخْبَرَنِي يُونُسُ عَنِ ابْنِ شِهَابٍ قَالَ أَخْبَرَنِي سَالِمُ بْنُ عَبْدِ اللَّهِ أَنَّ أَبَاهُ قَالَ

رَأَيْتُ رَسُولَ اللَّهِ ﷺ إِذَا أَعْجَلَهُ السَّيْرُ فِي السَّفَرِ يُؤَخِّرُ صَلاَةَ الْمَغْرِبِ حَتَّى يَجْمَعَ بَيْنَهَا وَبَيْنَ صَلاَةِ الْعِشَاءِ  

See similar narrations below:

Collected by Nasāʾī, Ṭabarānī, Nasāʾī's Kubrá
nasai:592 – [Chain 1] ʿAmr b. ʿUthmān > Baqiyyah > Ibn Abū Ḥamzah [Chain 2] Aḥmad b. Muḥammad b. al-Mughīrah > ʿUthmān > Shuʿayb > al-Zuhrī > Sālim from his father

"Salim told me that his father said: 'I saw the Messenger of Allah ﷺ, when he was in a hurry to travel, delaying Maghrib so that he could combine it with 'Isha'.'"  

النسائي:٥٩٢ – أَخْبَرَنِي عَمْرُو بْنُ عُثْمَانَ قَالَ حَدَّثَنَا بَقِيَّةُ عَنِ ابْنِ أَبِي حَمْزَةَ ح وَأَنْبَأَنَا أَحْمَدُ بْنُ مُحَمَّدِ بْنِ الْمُغِيرَةِ قَالَ حَدَّثَنَا عُثْمَانُ وَاللَّفْظُ لَهُ عَنْ شُعَيْبٍ عَنِ الزُّهْرِيِّ قَالَ أَخْبَرَنِي سَالِمٌ عَنْ أَبِيهِ قَالَ

رَأَيْتُ رَسُولَ اللَّهِ ﷺ إِذَا أَعْجَلَهُ السَّيْرُ فِي السَّفَرِ يُؤَخِّرُ صَلاَةَ الْمَغْرِبِ حَتَّى يَجْمَعَ بَيْنَهَا وَبَيْنَ الْعِشَاءِ  

tabarani:13107 – Salamah b. Aḥmad al-Fawzī al-Ḥimṣī > Jaddī Khaṭṭāb b. ʿUthmān al-Fawzī > Muḥammad b. Ḥimyar > Ibrāhīm b. Abū ʿAblah > Ibn Shihāb > Sālim from his father

[Machine] I saw the Messenger of Allah ﷺ when the journey became difficult, he would delay the Maghrib prayer until he combined it with the Isha prayer.  

الطبراني:١٣١٠٧ – حَدَّثَنَا سَلَمَةُ بْنُ أَحْمَدَ الْفَوْزِيُّ الْحِمْصِيُّ ثنا جَدِّي خَطَّابُ بْنُ عُثْمَانَ الْفَوْزِيُّ ثنا مُحَمَّدُ بْنُ حِمْيَرَ ثنا إِبْرَاهِيمُ بْنُ أَبِي عَبْلَةَ عَنِ ابْنِ شِهَابٍ عَنْ سَالِمٍ عَنْ أَبِيهِ قَالَ

رَأَيْتُ رَسُولَ اللهِ ﷺ «إِذَا جَدَّ بِهِ السَّيْرُ فِي السَّفَرِ أَخَّرَ الْمَغْرِبَ حَتَّى جَمَعَ بَيْنَهَا وَبَيْنَ صَلَاةِ الْعِشَاءِ»  

tabarani:13128 – Aḥmad b. ʿAbd al-Wahhāb b. Najdah al-Ḥawṭī > Abū al-Mughīrah > ʿAbd al-Raḥman b. Yazīd b. Tamīm al-Sulamī > al-Zuhrī > Sālim > ʿAbdullāh b. ʿUmar

I saw the Messenger of Allah ﷺ delaying the sunset prayer till he would combine it with the 'Isha' when he hastened to set out on a journey. (Using translation from Muslim 703d)  

الطبراني:١٣١٢٨ – حَدَّثَنَا أَحْمَدُ بْنُ عَبْدِ الْوَهَّابِ بْنِ نَجْدَةَ الْحَوْطِيُّ ثنا أَبُو الْمُغِيرَةِ ثنا عَبْدُ الرَّحْمَنِ بْنُ يَزِيدَ بْنِ تَمِيمٍ السُّلَمِيُّ حَدَّثَنِي الزُّهْرِيُّ عَنْ سَالِمٍ أَنَّ عَبْدَ اللهِ بْنَ عُمَرَ قَالَ

«رَأَيْتُ رَسُولَ اللهِ ﷺ كَانَ إِذَا أَعْجَلَهُ السَّيْرُ فِي السَّفَرِ يُؤَخِّرُ صَلَاةَ الْمَغْرِبِ حَتَّى يَجْمَعَ بَيْنَهَا وَبَيْنَ صَلَاةِ الْعِشَاءِ»  

nasai-kubra:1580 – Aḥmad b. Muḥammad b. al-Mughīrah > ʿUthmān > Shuʿayb > al-Zuhrī > Sālim from his father

I saw the Messenger of Allah ﷺ delaying the sunset prayer till he would combine it with the 'Isha' when he hastened to set out on a journey. (Using translation from Muslim 703d)  

الكبرى للنسائي:١٥٨٠ – أَخْبَرَنَا أَحْمَدُ بْنُ مُحَمَّدِ بْنِ الْمُغِيرَةِ قَالَ حَدَّثَنَا عُثْمَانُ عَنْ شُعَيْبٍ عَنِ الزُّهْرِيِّ قَالَ أَخْبَرَنِي سَالِمٌ عَنْ أَبِيهِ قَالَ

رَأَيْتُ رَسُولَ اللهِ ﷺ «إِذَا أَعْجَلَهُ السَّيْرُ فِي السَّفَرِ يُؤَخِّرُ صَلَاةَ الْمَغْرِبِ حَتَّى يَجْمَعَ بَيْنَهَا وَبَيْنَ الْعِشَاءِ»