Sahih al-Bukhari 1091, 1092
Narrated `Abdullah bin `Umar:
"I saw Allah's Messenger (ﷺ) delaying the Maghrib prayer till he offered it along with the `Isha' prayer 
whenever he was in a hurry during the journey." Salim narrated, "Ibn `Umar used to do the same 
whenever he was in a hurry during the journey." And Salim added, "Ibn `Umar used to pray the 
Maghrib and `Isha' prayers together in Al-Muzdalifa." Salim said, "Ibn `Umar delayed the Maghrib 
prayer because at that time he heard the news of the death of his wife Safiya bint Abi `Ubaid. I said to 
him, 'The prayer (is due).' He said, 'Go on.' Again I said, 'The prayer (is due).' He said, 'Go on,' till we 
covered two or three miles. Then he got down, prayed and said, 'I saw the Prophet (ﷺ) praying in this way, 
whenever he was in a hurry during the journey.' `Abdullah (bin `Umar) added, "Whenever the 
Prophet was in a hurry, he used to delay the Maghrib prayer and then offer three rak`at (of the 
Maghrib) and perform Taslim, and after waiting for a short while, Iqama used to be pronounced for 
the `Isha' prayer when he would offer two rak`at and perform Taslim. He would never offer any 
optional prayer till the middle of the night (when he used to pray the Tahajjud)."
حَدَّثَنَا أَبُو الْيَمَانِ، قَالَ أَخْبَرَنَا شُعَيْبٌ، عَنِ الزُّهْرِيِّ، قَالَ أَخْبَرَنِي سَالِمٌ، عَنْ عَبْدِ اللَّهِ بْنِ عُمَرَ ـ رضى الله عنهما ـ قَالَ رَأَيْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم إِذَا أَعْجَلَهُ السَّيْرُ فِي السَّفَرِ يُؤَخِّرُ الْمَغْرِبَ حَتَّى يَجْمَعَ بَيْنَهَا وَبَيْنَ الْعِشَاءِ‏.‏ قَالَ سَالِمٌ وَكَانَ عَبْدُ اللَّهِ يَفْعَلُهُ إِذَا أَعْجَلَهُ السَّيْرُ‏.‏ وَزَادَ اللَّيْثُ قَالَ حَدَّثَنِي يُونُسُ، عَنِ ابْنِ شِهَابٍ، قَالَ سَالِمٌ كَانَ ابْنُ عُمَرَ ـ رضى الله عنهما ـ يَجْمَعُ بَيْنَ الْمَغْرِبِ وَالْعِشَاءِ بِالْمُزْدَلِفَةِ‏.‏ قَالَ سَالِمٌ وَأَخَّرَ ابْنُ عُمَرَ الْمَغْرِبَ، وَكَانَ اسْتُصْرِخَ عَلَى امْرَأَتِهِ صَفِيَّةَ بِنْتِ أَبِي عُبَيْدٍ فَقُلْتُ لَهُ الصَّلاَةُ‏.‏ فَقَالَ سِرْ‏.‏ فَقُلْتُ الصَّلاَةُ‏.‏ فَقَالَ سِرْ‏.‏ حَتَّى سَارَ مِيلَيْنِ أَوْ ثَلاَثَةً ثُمَّ نَزَلَ فَصَلَّى ثُمَّ قَالَ هَكَذَا رَأَيْتُ النَّبِيَّ صلى الله عليه وسلم يُصَلِّي إِذَا أَعْجَلَهُ السَّيْرُ‏.‏ وَقَالَ عَبْدُ اللَّهِ رَأَيْتُ النَّبِيَّ صلى الله عليه وسلم إِذَا أَعْجَلَهُ السَّيْرُ يُؤَخِّرُ الْمَغْرِبَ، فَيُصَلِّيهَا ثَلاَثًا ثُمَّ يُسَلِّمُ، ثُمَّ قَلَّمَا يَلْبَثُ حَتَّى يُقِيمَ الْعِشَاءَ فَيُصَلِّيَهَا رَكْعَتَيْنِ ثُمَّ يُسَلِّمُ، وَلاَ يُسَبِّحُ بَعْدَ الْعِشَاءِ حَتَّى يَقُومَ مِنْ جَوْفِ اللَّيْلِ‏.‏