Abdullah bin Umar reported,

Someone asked Ibn Umar whether one may combine any of the prayers while traveling.He replied, "No, except at Muzdalifah."Then I came to him another time, and he related the following. Safiyyah was with him when she sent word to him saying, "I am in my last day of this world and my first day of the next."So he mounted his ride, and I went with him. He hurried along until the time for prayer arrived.The muezzin said to him, "The prayer, Abu Abdul-Rahman."But he kept going until he was between the times of the two prayers, then he dismounted and said to the muezzin, "Call the iqamah, and when I give the salam from Zuhr, call the iqamah again where you stand."So the muezzin called the iqamah, and Ibn Umar prayed Zuhr in two rakahs, then gave the salam. Then the muezzin called the iqamah again in the same spot, and he prayed Asr in two rakahs.Then he mounted and hurried along until the sun had set.The muezzin said to him, "The prayer, Abu Abdul-Rahman."He answered, "Do as you did before."He continued on until the stars had become densely visible, then he dismounted and said, "Call the iqamah, and when I give the salam, call it again."So he prayed Maghrib in three rakahs, then the muezzin called the iqamah in the same spot, and he prayed the final Isha. Then he gave a single salam straight ahead of him.Then he said, the Messenger of Allah ﷺ said, "When any of you faces a matter he fears will pass him by, let him pray in this manner."

Nasai 598

Sahih

أخبرنا عبدة بن عبد الرحيم قال حدثنا ابن شميل قال حدثنا كثير بن قاروندا قال سألنا سالم بن عبد الله عن الصلاة في السفر

فقلنا أكان عبد الله

يجمع بين شيء من الصلوات في السفر فقال لا إلا بجمع ثم أتيته فقال كانت عنده صفية فأرسلت إليه أني في آخر يوم من الدنيا وأول يوم من الآخرة فركب وأنا معه فأسرع السير حتى حانت الصلاة فقال له المؤذن الصلاة يا أبا عبد الرحمن فسار حتى إذا كان بين الصلاتين نزل فقال للمؤذن أقم فإذا سلمت من الظهر فأقم مكانك فأقام فصلى الظهر ركعتين ثم سلم ثم أقام مكانه فصلى العصر ركعتين ثم ركب فأسرع السير حتى غابت الشمس فقال له المؤذن الصلاة يا أبا عبد الرحمن فقال كفعلك الأول فسار حتى إذا اشتبكت النجوم نزل فقال أقم فإذا سلمت فأقم فصلى المغرب ثلاثا ثم أقام مكانه فصلى العشاء الآخرة ثم سلم واحدة تلقاء وجهه ثم قال قال رسول الله ﷺ إذا حضر أحدكم أمر يخشى فوته فليصل هذه الصلاة

النسائي 598صحيح
Contents
Reference
Commentary
Ayat
Collection
Sunan Nasai Sughra
Book
Times of prayer
Chapter
Time at which a traveler combines Maghrib and Isha
Numbering
Darussalam 598
Nasai 598