The Prophet (peace and blessings be upon him) said: "Travel and you will remain healthy, and perform jihad and you will become self-sufficient." This hadith is narrated from Sayyiduna Abu Hurairah, Sayyiduna Abdullah bin Umar, Sayyiduna Abdullah bin Abbas, Sayyiduna Abu Saeed (may Allah be pleased with them), and mursal from Zaid bin Aslam.