بُلُوغُ الْمَرَامِ
Bulugh al-Maram 471
The Book of Prayer
وَعَنِ ابْنِ عُمَرَ - رضى الله عنه - قَالَ: قَالَ رَسُولُ اَللَّهِ - صلى الله عليه وسلم -{ لَيْسَ عَلَى مُسَافِرٍ جُمُعَةٌ } رَوَاهُ اَلطَّبَرَانِيُّ بِإِسْنَادٍ ضَعِيف ٍ [1] .
Narrated Ibn 'Umar (RA): Allah's Messenger (ﷺ) said: "Jumu'ah prayer is not obligatory on a traveller." [Reported by at-Tabarani through a weak chain of narrators].
Sunnah.com reference: Book 2, Hadith 395