Absence of the reasons for which it is permissible to abandon the congregational Prayer. May Be Abandoned Reasons for which congregation may be abandoned are of four types. Inability to visit the mosque. Danger to life and property. Regulations for Lining-up 1.
Utmost care has to be exercised to keep the rows straight and balanced.
One day he came out and was about to pronounce the takbir for prayer when he saw a man with his chest protruding a little from the row. Keep your rows straight and balanced, otherwise Allah might turn your hearts one against the other. The front rows should be filled and completed first. The people possessing deep knowledge and understanding of religion should stand close to the Imam behind him, then those who are next to them and knowledge and understanding, then those who are next Imam in knowledge and understanding. The front rows behind the Imam should consist of men, then of children, and then of women at the rear.