It is narrated from Hazrat Uthman bin Abi Al-Aas (may Allah be pleased with him) that the last time he took leave from the Prophet (peace and blessings be upon him), the Prophet (peace and blessings be upon him) said: When you lead people in prayer, make it light, to the extent that the Prophet (peace and blessings be upon him) specified for me the length of Surah "Iqra' bismi rabbika allathee khalaq."