The 99 Names · From the Prophetic Sunnah
Al-Jameel الجميل
The Beautiful in His essence, names, attributes and actions.
Explanation
A detailed explanation of this name (in Arabic) is in: Sharh Asma' Allah al-Husna fi Daw' al-Kitab wa al-Sunnah — Dr. Sa'eed ibn 'Ali ibn Wahf al-Qahtani — p. 181 ↗
Evidence
«إِنَّ اللَّهَ جَمِيلٌ يُحِبُّ الجَمَالَ»
Call upon Allah by this name
“To Allah belong the Beautiful Names, so call upon Him by them” — Al-A'raf 180
Example for practice
اللهم إنك جميل تحب الجمال، فجمّل باطني بالإيمان وظاهري بالطاعة
O Allah, You are Beautiful and love beauty; beautify my inner self with faith and my outward self with obedience.
An example for practice, not a transmitted text — following the Quranic way of closing a request with the fitting name (see Ibn al-Qayyim, Bada'i' al-Fawa'id 2/249).