And the Prophet Muhammad (peace and blessings be upon him) said: By Him in Whose hand is the soul of Muhammad (peace and blessings be upon him), if I knew that the Muslims would not be put to hardship, I would never stay behind from any expedition sent out in the way of Allah. But I do not have enough means to provide them with mounts, and they do not have enough means to follow me, and their hearts would not be content, and they would begin to stay behind from participating in jihad after me.