(اِلْبَسْ جَدِيداً وَعِشْ حَمِيداً وَمُتْ شَهِيداً).
Transliteration
(Ilbas jadeedan waAAish hameedan wamut shaheedan.)
Translation
(Wear anew, live commendably and die a shaheed.)(shaheed:One who dies fighting the kuffar in order to make the word of Allah superior or in defense of Islam. It also has other meanings found in the Sunnah such as: the one who dies defending his life, wealth or family; the woman who passes away due to childbirth; one who drowns…etc.)
Source
Hisnul Muslim (Fortress of the Muslim), No. 8 — chapter “Invocations for someone who has put on new clothes”. hisnmuslim.com
Related Duas
Invocations for someone who has put on new clothes
Supplication 1 of 2
(تُبْلِي وَيُخْلِفُ اللَّهُ تَعَالَى)
(May you wear it out and Allah تعالى replace it (with another).’ The intended meaning: A supplication for long life.)
Hisnul Muslim · No. 7
What to say when leaving the home
Supplication 1 of 2
(بِسْمِ اللَّهِ، تَوَكَّلْتُ عَلَى اللَّهِ، وَلَاَ حَوْلَ وَلَا قُوَّةَ إِلاَّ بِاللَّهِ).
(In the name of Allah, I place my trust in Allah, and there is no might nor power except with Allah.)
Hisnul Muslim · No. 16
(بِسْمِ اللَّهِ وَلَجْنَا، وَبِسْمِ اللَّهِ خَرَجْنَا، وَعَلَى اللَّهِ رَبِّنَا تَوَكَّلْنَا، ثُمَّ لِيُسَلِّمْ عَلَى أَهْلِهِ).
(In the name of Allah we enter and in the name of Allah we leave, and upon our Lord we place our trust.)
Hisnul Muslim · No. 18
([بِسْمِ اللَّهِ] اللَّهُمَّ إِنِّي أَعُوذُ بِكَ مِنَ الْخُبْثِ وَالْخَبائِث).
((In the name of Allah). O Allah, I take refuge with you from all evil and evil-doers.)
Hisnul Muslim · No. 10