Rasoolullah sallallahu alaihe wasallam replied, O Mother, an old woman cannot enter Jannah. That woman started crying and began to leave. Rasoolullah sallallahu alaihe wasallam said, Say to the woman that one will not enter in a state of old age, but Allah will make all the women of Jannah young virgins. Allah Ta'ala says, Lo! We have created them a (new) creation and made them virgins, lovers, equal in age. (Surah Waaqi'ah, 35-37).
Arabic : Book 36, Hadith 240