It was narrated from Ibn 'Abbas that the Prophet (ﷺ) said:
"No woman asks for divorce when it is not absolutely necessary, but she will never smell the fragrance of paradise, although its fragrance can be detected from a distance of forty years' travel. " (DE)
English reference (DE): Vol. 3, Book 10, Hadith 2054 (DE)
Arabic reference (DE): Book 10, Hadith 2132 (DE)