Shaykh ul-Islaam Ahmad bin AbdulHaleem Ibn Taymeeyah (d.728 A.H.) -Rahimullaah- said:
Every time a person increases in doing good acts and Taqwaa 1then his goodness and beauty strengthens.
Every time his sinning and enmity strengths then his ugliness2 and disfigurement increases . . . . So we see the faces of the people of the Sunnah and obedience3, that, as they grow older, their beauty and radiance increases so much so that you find one of them in his senior age better and more beautiful than when he was younger.
We find that the faces of the people of Bida’ and sinning, every time they grow older their ugliness and disfigurement gets worse so much for so that you cannot even look at them, those who were dazzled and deceived by the people of Bida’ and sinning when they were young due to the beauty of their forms.
This is apparent in everyone [from the people of Bida’] who glorifies his Bida’ and his evil, like the Rafidah, and the people of tyranny, oppression and evil deeds. . . Since indeed every time the Rafidi gets older his face gets uglier and his disfigurement gets worse to the extent his resemblance to a pig increases, and perhaps transforms into a pig and a monkey as it has been frequently mentioned about them….’