[Machine] Ka'b ibn Malik used to say, "Rarely would the Messenger of Allah ﷺ embark on a journey unless it was on a Thursday."  

أَنَّ كَعْبَ بْنَ مَالِكٍ ؓ كَانَ يَقُولُ قَلَّمَا كَانَ رَسُولُ اللهِ ﷺ يَخْرُجُ فِي سَفَرٍ إِذَا خَرَجَ إِلَّا يَوْمَ الْخَمِيسِ