Anas (May Allah be pleased with him) reported: The Messenger of Allah (sallallaahu ’alayhi wa sallam) said, "Recite frequently: `Ya Dhal-Jalali wal-Ikram! (O You, Possessor of glory and honour).'''
[At-Tirmidhi].
Commentary: This Hadith tells us that one should make abundant use of the words `Ya-Dhal-Jalali wal-Ikram' in his prayer because these words contain the Praise of Allah and mention His Perfect Attributes. Some have said that Al-Jalal and Al-Ikram are Allah's Greatest Name.
[At-Tirmidhi].
Commentary: This Hadith tells us that one should make abundant use of the words `Ya-Dhal-Jalali wal-Ikram' in his prayer because these words contain the Praise of Allah and mention His Perfect Attributes. Some have said that Al-Jalal and Al-Ikram are Allah's Greatest Name.