It is narrated from Hazrat Alqamah bin Shihab (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: Whoever did not get the opportunity to fight alongside me should participate in the naval jihad, because one naval battle is superior to two battles fought on land. The reward for one who is martyred at sea is equal to that of two martyrs on land. The most virtuous martyrs in the sight of Allah are the "Ashab al-Wukuf." The people asked, "O Messenger of Allah! Who are the 'Ashab al-Wukuf'?" He replied: Those whose mounts overturn and they are martyred because of it.