عَنْ عَلِيٍّ رَضِيَ اللَّهُ عَنْهُ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ كَانَ إِذَا أَرَادَ سَفَرًا قَالَ: ((اللَّهُمَّ بِكَ أَصُوْلُ وَبِكَ أَحُوْلُ وَبِكَ أَسِيرُ))
It is narrated from Sayyiduna Ali (may Allah be pleased with him) that when the Messenger of Allah (peace and blessings be upon him) intended to travel, he would say: "O Allah! With Your help I attack, with Your help I move, and with Your help I travel." ... O Allah! It is only with You that I attack (the enemy), only with You that I move, and only with You that I walk.