إِلبَسْ جَدِيداً، وَعِشْ حَمِيداً، وَمُتْ شَهِيداً

Wear anew, live commendably and die a martyr.

Référence: Ibn Mājah (#3558, 2/1178) and al-Baghawī (12/41). Also see Ṣaḥīḥ Ibn Mājah (2/275).