Ibn ‘Abbas reported God’s messenger as saying, “Dying abroad is treated as martyrdom." Ibn Majah transmitted it.

وَعَنِ ابْنِ عَبَّاسٍ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «مَوْتُ غُرْبَةٍ شَهَادَةٌ» . رَوَاهُ ابْن مَاجَه