Conduct while Traveling - Section 1 Mishkat al-Masabih 3892
Arabic hadith text
عَن كَعْب بْنِ مَالِكٍ: أَنَّ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ خَرَجَ يَوْمَ الْخَمِيسِ فِي غَزْوَةِ تَبُوكَ وَكَانَ يُحِبُّ أَنْ يَخْرُجَ يَوْمَ الْخَمِيسِ. رَوَاهُ البُخَارِيّ
Translation
Ka'b b. Malik said that the Prophet set out on a Thursday in the expedition to Tabuk and that he used to like to set out on a Thursday. Bukhari transmitted it.