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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
malik:9-19 – Yaḥyá > Mālik > Ibn Shihāb > Sālim b. ʿAbdullāh

Yahya related to me from Malik from Ibn Shihab from Salim ibn Abdullah that Abdullah ibn Umar used to say, "I pray the prayerof a traveller as long as I am undecided whether to remain somewhere or not, even if I am detained for twelve nights."  

مالك:٩-١٩ – حَدَّثَنِي يَحْيَى عَنْ مَالِكٍ عَنِ ابْنِ شِهَابٍ عَنْ سَالِمِ بْنِ عَبْدِ اللَّهِ

أَنَّ عَبْدَ اللَّهِ بْنَ عُمَرَ كَانَ يَقُولُ أُصَلِّي صَلاَةَ الْمُسَافِرِ مَا لَمْ أُجْمِعْ مُكْثًا وَإِنْ حَبَسَنِي ذَلِكَ اثْنَتَىْ عَشْرَةَ لَيْلَةً  

See similar narrations below:

Collected by Bayhaqī
bayhaqi:5477 – Abū Aḥmad al-Mihrajānī > Abū Bakr b. Jaʿfar al-Muzakkī > Muḥammad b. Ibrāhīm > Ibn Bukayr > Mālik > Ibn Shihāb > Sālim b. ʿAbdullāh > Abīh ʿAbdullāh b. ʿUmar

[Machine] "He used to say, 'I would pray the prayer of a traveler as long as I did not stay, even if that kept me detained for twelve nights.'"  

البيهقي:٥٤٧٧ – وَأَخْبَرَنَا أَبُو أَحْمَدَ الْمِهْرَجَانِيُّ أنبأ أَبُو بَكْرِ بْنُ جَعْفَرٍ الْمُزَكِّي ثنا مُحَمَّدُ بْنُ إِبْرَاهِيمَ ثنا ابْنُ بُكَيْرٍ ثنا مَالِكٌ عَنِ ابْنِ شِهَابٍ عَنْ سَالِمِ بْنِ عَبْدِ اللهِ عَنْ أَبِيهِ عَبْدِ اللهِ بْنِ عُمَرَ

أَنَّهُ كَانَ يَقُولُ أُصَلِّي صَلَاةَ الْمُسَافِرِ مَا لَمْ أَجْمَعْ مُكْثًا وَإِنْ حَبَسَنِي ذَلِكَ اثْنَتَيْ عَشْرَةَ لَيْلَةً