By Shaykh Muhammad Taqiud-Deen al-Hilali Imam Al-Lalaka'i (رحمه الله) said: "It is sufficient in shame of the one that leaves off the prayer that the people of knowledge differed concerning him: is he a Muslim or a disbeliever?" [Sharh Usul i'tiqäd Ahlus-Sunnah-11/20] Pages 112
