It wasnarrated from Abu Hurairah:
"Mention of the martyrs was madein thepresence of the Prophet (ﷺ) and he said: 'The earth does notdryof the blood of the martyr until his two wives rush to him liketwowet nurses who lost their young ones in a stretch of barren land,andin the hand of each one of them will be a Hullah* that is betterthanthis world and everything in it.'" (FR)
English reference (FR): Vol. 4, Book 24, Hadith 2798 (FR)
Arabic reference (FR): Book 24, Hadith 2904 (FR)