It is narrated from Sayyiduna Ka'b bin 'Ujrah (may Allah be pleased with him) that a blind man came to the Noble Prophet (peace and blessings be upon him) and said: "O Messenger of Allah! I hear the call to prayer but I have no guide (to bring me to the mosque)." The Prophet (peace and blessings be upon him) said: "When you hear the call to prayer, respond to the caller of Allah (and reach the mosque)."