(103) باب مَنْ أَرَادَ غَزْوَةً فَوَرَّى بِغَيْرِهَا، وَمَنْ أَحَبَّ الْخُرُوجَ يَوْمَ الْخَمِيسِ
Narrated Ka`b bin Malik:
The Prophet (ﷺ) set out on Thursday for the Ghazwa of Tabuk and he used to prefer to set out (i.e. travel) on Thursdays.
Reference: Sahih al-Bukhari 2950
In-book reference: Book 56, Hadith 162
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 4, Book 52, Hadith 199