ENOfficial
Ibn ‘Abbas reported God’s messenger as saying, “Dying abroad is treated as martyrdom." Ibn Majah transmitted it.
Source: sunnah.com
Other translations
Arabic
وَعَنِ ابْنِ عَبَّاسٍ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «مَوْتُ غُرْبَةٍ شَهَادَةٌ» . رَوَاهُ ابْن مَاجَه
sunnah.com