Necololic numbers

A poem by the poet Al -Nahwi, Malik bin Al -Maralat, is known as the necessary dozens. These patrons praised the Messenger of God, may God''s prayers and peace be upon him and his family, with ten verses on every letter of the satire, and in every ten verses he adhered to a hybrid and conclusion. He was not satisfied with that, but he adhered to a second letter after the first and made this second...